[Show all top banners]

Gham-Pani
Replies to this thread:

More by Gham-Pani
What people are reading
Subscribers
:: Subscribe
Back to: Kurakani General Refresh page to view new replies
 Help from Math Experts, please.
[VIEWED 11415 TIMES]
SAVE! for ease of future access.
Posted on 01-09-15 3:42 PM     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

Hi,
I need to calculate fixed yearly interest rate. Here's the problem:
Amount: $84289.80
Number of monthly payments: 231
Monthly payment: $528.67

Thanks.

 
Posted on 01-09-15 5:05 PM     [Snapshot: 58]     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 
 
Posted on 01-09-15 5:51 PM     [Snapshot: 103]     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

can you post how you figured it out?
 
Posted on 01-10-15 6:15 AM     [Snapshot: 277]     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

Yes can you tell me how you came with this number? I got 3.08% interest rate.
Is there a specific forumla?
 
Posted on 01-10-15 8:04 AM     [Snapshot: 319]     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

i got 2.025%
lol

 
Posted on 01-10-15 11:15 AM     [Snapshot: 399]     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

Answer is 4.11

 
Posted on 01-10-15 12:18 PM     [Snapshot: 447]     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

Yikes! This problem isn't as simple as I thought. I already spent a couple of hours still couldn't get through. However, I found an example in following website, and I assume it might be helpful to solve it. If u r able to solve this problem please post the steps here. And I think 4.11% is the right answer because when u plug into a right online calculator you can get that answer.
http://mathforum.org/dr.math/faq/faq.interest.html
 
Posted on 01-10-15 7:23 PM     [Snapshot: 541]     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

I know the steps but its too long to post here. Sorry. It just took me 12 minutes to solve this problem.
 
Posted on 01-10-15 11:42 PM     [Snapshot: 638]     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

The answer seems to be 4.11 using HP 12C calculator.
I think the math behind this calculation is
PV/PMT = ((1-(1+i)^n)/i
where PV=84289.80
PMT= 528.67
n = 231
find i

 
Posted on 01-11-15 12:37 AM     [Snapshot: 655]     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

4.11 seems right,
 M = P * ( J / (1 - (1 + J)-N))
  • M = payment amount
  • P = principal, meaning the amount of money borrowed
  • J = effective interest rate.
  • N = total number of payments
here is how your payment would get allocated.
Month Balance Principal Interest Payment
1 $ 84,289.80 $ 239.98 $ 288.69 $ 528.67
2 $ 84,049.82 $ 240.80 $ 287.87 $ 528.67
3 $ 83,809.03 $ 241.62 $ 287.05 $ 528.67
4 $ 83,567.40 $ 242.45 $ 286.22 $ 528.67
5 $ 83,324.95 $ 243.28 $ 285.39 $ 528.67
6 $ 83,081.67 $ 244.11 $ 284.55 $ 528.67
7 $ 82,837.56 $ 244.95 $ 283.72 $ 528.67
8 $ 82,592.61 $ 245.79 $ 282.88 $ 528.67
9 $ 82,346.82 $ 246.63 $ 282.04 $ 528.67
10 $ 82,100.19 $ 247.48 $ 281.19 $ 528.67
11 $ 81,852.72 $ 248.32 $ 280.35 $ 528.67
12 $ 81,604.39 $ 249.17 $ 279.50 $ 528.67
13 $ 81,355.22 $ 250.03 $ 278.64 $ 528.67
14 $ 81,105.19 $ 250.88 $ 277.79 $ 528.67
15 $ 80,854.31 $ 251.74 $ 276.93 $ 528.67
16 $ 80,602.57 $ 252.60 $ 276.06 $ 528.67
17 $ 80,349.96 $ 253.47 $ 275.20 $ 528.67
18 $ 80,096.49 $ 254.34 $ 274.33 $ 528.67
19 $ 79,842.16 $ 255.21 $ 273.46 $ 528.67
20 $ 79,586.95 $ 256.08 $ 272.59 $ 528.67
21 $ 79,330.86 $ 256.96 $ 271.71 $ 528.67
22 $ 79,073.90 $ 257.84 $ 270.83 $ 528.67
23 $ 78,816.06 $ 258.72 $ 269.95 $ 528.67
24 $ 78,557.34 $ 259.61 $ 269.06 $ 528.67
25 $ 78,297.73 $ 260.50 $ 268.17 $ 528.67
26 $ 78,037.23 $ 261.39 $ 267.28 $ 528.67
27 $ 77,775.84 $ 262.29 $ 266.38 $ 528.67
28 $ 77,513.55 $ 263.18 $ 265.48 $ 528.67
29 $ 77,250.37 $ 264.09 $ 264.58 $ 528.67
30 $ 76,986.28 $ 264.99 $ 263.68 $ 528.67
31 $ 76,721.29 $ 265.90 $ 262.77 $ 528.67
32 $ 76,455.40 $ 266.81 $ 261.86 $ 528.67
33 $ 76,188.59 $ 267.72 $ 260.95 $ 528.67
34 $ 75,920.86 $ 268.64 $ 260.03 $ 528.67
35 $ 75,652.22 $ 269.56 $ 259.11 $ 528.67
36 $ 75,382.67 $ 270.48 $ 258.19 $ 528.67
37 $ 75,112.18 $ 271.41 $ 257.26 $ 528.67
38 $ 74,840.77 $ 272.34 $ 256.33 $ 528.67
39 $ 74,568.43 $ 273.27 $ 255.40 $ 528.67
40 $ 74,295.16 $ 274.21 $ 254.46 $ 528.67
41 $ 74,020.96 $ 275.15 $ 253.52 $ 528.67
42 $ 73,745.81 $ 276.09 $ 252.58 $ 528.67
43 $ 73,469.72 $ 277.03 $ 251.63 $ 528.67
44 $ 73,192.69 $ 277.98 $ 250.68 $ 528.67
45 $ 72,914.70 $ 278.94 $ 249.73 $ 528.67
46 $ 72,635.77 $ 279.89 $ 248.78 $ 528.67
47 $ 72,355.88 $ 280.85 $ 247.82 $ 528.67
48 $ 72,075.03 $ 281.81 $ 246.86 $ 528.67
49 $ 71,793.21 $ 282.78 $ 245.89 $ 528.67
50 $ 71,510.44 $ 283.75 $ 244.92 $ 528.67
51 $ 71,226.69 $ 284.72 $ 243.95 $ 528.67
52 $ 70,941.98 $ 285.69 $ 242.98 $ 528.67
53 $ 70,656.28 $ 286.67 $ 242.00 $ 528.67
54 $ 70,369.61 $ 287.65 $ 241.02 $ 528.67
55 $ 70,081.96 $ 288.64 $ 240.03 $ 528.67
56 $ 69,793.32 $ 289.63 $ 239.04 $ 528.67
57 $ 69,503.70 $ 290.62 $ 238.05 $ 528.67
58 $ 69,213.08 $ 291.61 $ 237.05 $ 528.67
59 $ 68,921.47 $ 292.61 $ 236.06 $ 528.67
60 $ 68,628.85 $ 293.61 $ 235.05 $ 528.67
61 $ 68,335.24 $ 294.62 $ 234.05 $ 528.67
62 $ 68,040.62 $ 295.63 $ 233.04 $ 528.67
63 $ 67,744.99 $ 296.64 $ 232.03 $ 528.67
64 $ 67,448.35 $ 297.66 $ 231.01 $ 528.67
65 $ 67,150.69 $ 298.68 $ 229.99 $ 528.67
66 $ 66,852.01 $ 299.70 $ 228.97 $ 528.67
67 $ 66,552.31 $ 300.73 $ 227.94 $ 528.67
68 $ 66,251.58 $ 301.76 $ 226.91 $ 528.67
69 $ 65,949.83 $ 302.79 $ 225.88 $ 528.67
70 $ 65,647.04 $ 303.83 $ 224.84 $ 528.67
71 $ 65,343.21 $ 304.87 $ 223.80 $ 528.67
72 $ 65,038.34 $ 305.91 $ 222.76 $ 528.67
73 $ 64,732.43 $ 306.96 $ 221.71 $ 528.67
74 $ 64,425.47 $ 308.01 $ 220.66 $ 528.67
75 $ 64,117.46 $ 309.07 $ 219.60 $ 528.67
76 $ 63,808.39 $ 310.12 $ 218.54 $ 528.67
77 $ 63,498.27 $ 311.19 $ 217.48 $ 528.67
78 $ 63,187.08 $ 312.25 $ 216.42 $ 528.67
79 $ 62,874.83 $ 313.32 $ 215.35 $ 528.67
80 $ 62,561.51 $ 314.40 $ 214.27 $ 528.67
81 $ 62,247.11 $ 315.47 $ 213.20 $ 528.67
82 $ 61,931.64 $ 316.55 $ 212.12 $ 528.67
83 $ 61,615.09 $ 317.64 $ 211.03 $ 528.67
84 $ 61,297.45 $ 318.72 $ 209.94 $ 528.67
85 $ 60,978.73 $ 319.82 $ 208.85 $ 528.67
86 $ 60,658.91 $ 320.91 $ 207.76 $ 528.67
87 $ 60,338.00 $ 322.01 $ 206.66 $ 528.67
88 $ 60,015.99 $ 323.11 $ 205.55 $ 528.67
89 $ 59,692.87 $ 324.22 $ 204.45 $ 528.67
90 $ 59,368.65 $ 325.33 $ 203.34 $ 528.67
91 $ 59,043.32 $ 326.45 $ 202.22 $ 528.67
92 $ 58,716.88 $ 327.56 $ 201.11 $ 528.67
93 $ 58,389.32 $ 328.68 $ 199.98 $ 528.67
94 $ 58,060.63 $ 329.81 $ 198.86 $ 528.67
95 $ 57,730.82 $ 330.94 $ 197.73 $ 528.67
96 $ 57,399.88 $ 332.07 $ 196.59 $ 528.67
97 $ 57,067.81 $ 333.21 $ 195.46 $ 528.67
98 $ 56,734.59 $ 334.35 $ 194.32 $ 528.67
99 $ 56,400.24 $ 335.50 $ 193.17 $ 528.67
100 $ 56,064.74 $ 336.65 $ 192.02 $ 528.67
101 $ 55,728.10 $ 337.80 $ 190.87 $ 528.67
102 $ 55,390.30 $ 338.96 $ 189.71 $ 528.67
103 $ 55,051.34 $ 340.12 $ 188.55 $ 528.67
104 $ 54,711.22 $ 341.28 $ 187.39 $ 528.67
105 $ 54,369.94 $ 342.45 $ 186.22 $ 528.67
106 $ 54,027.49 $ 343.62 $ 185.04 $ 528.67
107 $ 53,683.87 $ 344.80 $ 183.87 $ 528.67
108 $ 53,339.06 $ 345.98 $ 182.69 $ 528.67
109 $ 52,993.08 $ 347.17 $ 181.50 $ 528.67
110 $ 52,645.92 $ 348.36 $ 180.31 $ 528.67
111 $ 52,297.56 $ 349.55 $ 179.12 $ 528.67
112 $ 51,948.01 $ 350.75 $ 177.92 $ 528.67
113 $ 51,597.26 $ 351.95 $ 176.72 $ 528.67
114 $ 51,245.32 $ 353.15 $ 175.52 $ 528.67
115 $ 50,892.16 $ 354.36 $ 174.31 $ 528.67
116 $ 50,537.80 $ 355.58 $ 173.09 $ 528.67
117 $ 50,182.22 $ 356.79 $ 171.87 $ 528.67
118 $ 49,825.43 $ 358.02 $ 170.65 $ 528.67
119 $ 49,467.41 $ 359.24 $ 169.43 $ 528.67
120 $ 49,108.17 $ 360.47 $ 168.20 $ 528.67
121 $ 48,747.70 $ 361.71 $ 166.96 $ 528.67
122 $ 48,385.99 $ 362.95 $ 165.72 $ 528.67
123 $ 48,023.04 $ 364.19 $ 164.48 $ 528.67
124 $ 47,658.85 $ 365.44 $ 163.23 $ 528.67
125 $ 47,293.42 $ 366.69 $ 161.98 $ 528.67
126 $ 46,926.73 $ 367.94 $ 160.72 $ 528.67
127 $ 46,558.78 $ 369.20 $ 159.46 $ 528.67
128 $ 46,189.58 $ 370.47 $ 158.20 $ 528.67
129 $ 45,819.11 $ 371.74 $ 156.93 $ 528.67
130 $ 45,447.37 $ 373.01 $ 155.66 $ 528.67
131 $ 45,074.36 $ 374.29 $ 154.38 $ 528.67
132 $ 44,700.07 $ 375.57 $ 153.10 $ 528.67
133 $ 44,324.50 $ 376.86 $ 151.81 $ 528.67
134 $ 43,947.65 $ 378.15 $ 150.52 $ 528.67
135 $ 43,569.50 $ 379.44 $ 149.23 $ 528.67
136 $ 43,190.06 $ 380.74 $ 147.93 $ 528.67
137 $ 42,809.31 $ 382.05 $ 146.62 $ 528.67
138 $ 42,427.27 $ 383.35 $ 145.31 $ 528.67
139 $ 42,043.91 $ 384.67 $ 144.00 $ 528.67
140 $ 41,659.24 $ 385.99 $ 142.68 $ 528.67
141 $ 41,273.26 $ 387.31 $ 141.36 $ 528.67
142 $ 40,885.95 $ 388.63 $ 140.03 $ 528.67
143 $ 40,497.32 $ 389.97 $ 138.70 $ 528.67
144 $ 40,107.35 $ 391.30 $ 137.37 $ 528.67
145 $ 39,716.05 $ 392.64 $ 136.03 $ 528.67
146 $ 39,323.41 $ 393.99 $ 134.68 $ 528.67
147 $ 38,929.42 $ 395.34 $ 133.33 $ 528.67
148 $ 38,534.09 $ 396.69 $ 131.98 $ 528.67
149 $ 38,137.40 $ 398.05 $ 130.62 $ 528.67
150 $ 37,739.35 $ 399.41 $ 129.26 $ 528.67
151 $ 37,339.94 $ 400.78 $ 127.89 $ 528.67
152 $ 36,939.16 $ 402.15 $ 126.52 $ 528.67
153 $ 36,537.01 $ 403.53 $ 125.14 $ 528.67
154 $ 36,133.48 $ 404.91 $ 123.76 $ 528.67
155 $ 35,728.57 $ 406.30 $ 122.37 $ 528.67
156 $ 35,322.27 $ 407.69 $ 120.98 $ 528.67
157 $ 34,914.58 $ 409.09 $ 119.58 $ 528.67
158 $ 34,505.50 $ 410.49 $ 118.18 $ 528.67
159 $ 34,095.01 $ 411.89 $ 116.78 $ 528.67
160 $ 33,683.12 $ 413.30 $ 115.36 $ 528.67
161 $ 33,269.81 $ 414.72 $ 113.95 $ 528.67
162 $ 32,855.09 $ 416.14 $ 112.53 $ 528.67
163 $ 32,438.95 $ 417.56 $ 111.10 $ 528.67
164 $ 32,021.39 $ 419.00 $ 109.67 $ 528.67
165 $ 31,602.39 $ 420.43 $ 108.24 $ 528.67
166 $ 31,181.96 $ 421.87 $ 106.80 $ 528.67
167 $ 30,760.09 $ 423.32 $ 105.35 $ 528.67
168 $ 30,336.78 $ 424.76 $ 103.90 $ 528.67
169 $ 29,912.01 $ 426.22 $ 102.45 $ 528.67
170 $ 29,485.79 $ 427.68 $ 100.99 $ 528.67
171 $ 29,058.11 $ 429.14 $ 99.52 $ 528.67
172 $ 28,628.97 $ 430.61 $ 98.05 $ 528.67
173 $ 28,198.36 $ 432.09 $ 96.58 $ 528.67
174 $ 27,766.27 $ 433.57 $ 95.10 $ 528.67
175 $ 27,332.70 $ 435.05 $ 93.61 $ 528.67
176 $ 26,897.64 $ 436.54 $ 92.12 $ 528.67
177 $ 26,461.10 $ 438.04 $ 90.63 $ 528.67
178 $ 26,023.06 $ 439.54 $ 89.13 $ 528.67
179 $ 25,583.52 $ 441.04 $ 87.62 $ 528.67
180 $ 25,142.48 $ 442.56 $ 86.11 $ 528.67
181 $ 24,699.92 $ 444.07 $ 84.60 $ 528.67
182 $ 24,255.85 $ 445.59 $ 83.08 $ 528.67
183 $ 23,810.26 $ 447.12 $ 81.55 $ 528.67
184 $ 23,363.14 $ 448.65 $ 80.02 $ 528.67
185 $ 22,914.49 $ 450.19 $ 78.48 $ 528.67
186 $ 22,464.30 $ 451.73 $ 76.94 $ 528.67
187 $ 22,012.57 $ 453.28 $ 75.39 $ 528.67
188 $ 21,559.30 $ 454.83 $ 73.84 $ 528.67
189 $ 21,104.47 $ 456.39 $ 72.28 $ 528.67
190 $ 20,648.09 $ 457.95 $ 70.72 $ 528.67
191 $ 20,190.14 $ 459.52 $ 69.15 $ 528.67
192 $ 19,730.62 $ 461.09 $ 67.58 $ 528.67
193 $ 19,269.53 $ 462.67 $ 66.00 $ 528.67
194 $ 18,806.86 $ 464.25 $ 64.41 $ 528.67
195 $ 18,342.60 $ 465.84 $ 62.82 $ 528.67
196 $ 17,876.76 $ 467.44 $ 61.23 $ 528.67
197 $ 17,409.32 $ 469.04 $ 59.63 $ 528.67
198 $ 16,940.28 $ 470.65 $ 58.02 $ 528.67
199 $ 16,469.63 $ 472.26 $ 56.41 $ 528.67
200 $ 15,997.37 $ 473.88 $ 54.79 $ 528.67
201 $ 15,523.49 $ 475.50 $ 53.17 $ 528.67
202 $ 15,047.99 $ 477.13 $ 51.54 $ 528.67
203 $ 14,570.86 $ 478.76 $ 49.91 $ 528.67
204 $ 14,092.10 $ 480.40 $ 48.27 $ 528.67
205 $ 13,611.70 $ 482.05 $ 46.62 $ 528.67
206 $ 13,129.65 $ 483.70 $ 44.97 $ 528.67
207 $ 12,645.95 $ 485.36 $ 43.31 $ 528.67
208 $ 12,160.59 $ 487.02 $ 41.65 $ 528.67
209 $ 11,673.57 $ 488.69 $ 39.98 $ 528.67
210 $ 11,184.89 $ 490.36 $ 38.31 $ 528.67
211 $ 10,694.53 $ 492.04 $ 36.63 $ 528.67
212 $ 10,202.49 $ 493.72 $ 34.94 $ 528.67
213 $ 9,708.76 $ 495.42 $ 33.25 $ 528.67
214 $ 9,213.35 $ 497.11 $ 31.56 $ 528.67
215 $ 8,716.23 $ 498.82 $ 29.85 $ 528.67
216 $ 8,217.42 $ 500.52 $ 28.14 $ 528.67
217 $ 7,716.90 $ 502.24 $ 26.43 $ 528.67
218 $ 7,214.66 $ 503.96 $ 24.71 $ 528.67
219 $ 6,710.70 $ 505.68 $ 22.98 $ 528.67
220 $ 6,205.02 $ 507.42 $ 21.25 $ 528.67
221 $ 5,697.60 $ 509.15 $ 19.51 $ 528.67
222 $ 5,188.45 $ 510.90 $ 17.77 $ 528.67
223 $ 4,677.55 $ 512.65 $ 16.02 $ 528.67
224 $ 4,164.90 $ 514.40 $ 14.26 $ 528.67
225 $ 3,650.50 $ 516.17 $ 12.50 $ 528.67
226 $ 3,134.33 $ 517.93 $ 10.74 $ 528.67
227 $ 2,616.40 $ 519.71 $ 8.96 $ 528.67
228 $ 2,096.69 $ 521.49 $ 7.18 $ 528.67
229 $ 1,575.20 $ 523.27 $ 5.40 $ 528.67
230 $ 1,051.93 $ 525.07 $ 3.60 $ 528.67
231 $ 526.86 $ 526.86 $ 1.80 $ 528.67
Last edited: 11-Jan-15 01:08 AM

 


Please Log in! to be able to reply! If you don't have a login, please register here.

YOU CAN ALSO



IN ORDER TO POST!




Within last 90 days
Recommended Popular Threads Controvertial Threads
Conservative discussions
TPS To F-1 COS
Homeland Security revokes temporary status for 532,000 Cubans, Haitians, Nicaraguans and Venezuelans
Nepal TPS has been Extended !!!
Nepal TPS decision
Got my F1 reinstatement approved within 3 months(was out of F1 for almost 2 years)
ICE kidnapping people off the streets over op eds
Has anyone here successfully reinstated to F-1 status after a year-long gap following a drop from F-1?
महँगो अण्डाको पिकल्प : कुखुरा र खोर भाडामा लिने
US citizen Petitioning my wife who was out of status when she was in H1B. What to do ?
TPS to F1 Status.
TPS of Nepal to be automatically extended for 6 months based on South Sudan decision
Genuine Question.... Why so many folks still in TPS after 10 years. Is the statistics wrong?
What is the purpose of an F1 student visa in the U.S.?
Please ask KRISTI NOEM in her facebook and other social media to renew TPS
#MAGA#FAFO is delicious
Any input on remote jobs(IT related or Sales or Marketing)?
Don’t Just Read—Join the Conversation
Supreme Court allows Trump to end TPS for Venezuelans
Nepal TPS
NOTE: The opinions here represent the opinions of the individual posters, and not of Sajha.com. It is not possible for sajha.com to monitor all the postings, since sajha.com merely seeks to provide a cyber location for discussing ideas and concerns related to Nepal and the Nepalis. Please send an email to admin@sajha.com using a valid email address if you want any posting to be considered for deletion. Your request will be handled on a one to one basis. Sajha.com is a service please don't abuse it. - Thanks.

Sajha.com Privacy Policy

Like us in Facebook!

↑ Back to Top
free counters