Ignacio earns 5 percent simple interest annually on his savings account. How much interest will he earn each month on $1250?

With simple interest, there is no compounding. To earn 2200.50 interest in six years, you need to earn 2200.50/6 = 366.75 each year. In order to earn 366.75 at 10.5%, you need a principal of 366.75/10.5% = 3492.86.

If the interest is compounded annually then you only need to invest 2682.13.

You have to say if simple or compound interest, and whether annual interest or some other period. Assuming compound interest annually, it is 3.78%, for the second case, earnings are $1483

2.75%

But how often is the interest applied, yearly or monthly? If yearly, then the last 3 months don't earn anything at the 29 mo point. So $27624.

If applied monthly the usual trick is to simply divide the yearly rate by 12 = 1.32% per mo. So after 29 mo, $30132

James Street will have to deposit $5910 dollars each year, for eight years, into that "planning" account. Compounded annually, it will be just enough to cover the four amounts to be withdrawn from the account on years 7($18,000), 8($19,000), 9($20,000) and 10($21,000) of the account. Comes down to about $9 left in the account upon the last withdrawal.

2nd [CLR TVM] (clears any previous results)

4 I/Y (4% interest rate)

1 2 0 0 +/- ($1200 monthly payment, negative because you're paying out the amount)

2 5 0 0 0 FV (desired value, positive because you'll be receiving the amount)

CPT N (compute the number of payments)

I want how i can calculate daily profit /loss calculation on investment

Press APPS and select the Finance app. Select the TVM Solver.

Enter -4000 for PV, 0 for PMT, 6000 for FV. Be sure you use the (-) key for PV, not the - key. P/V and C/Y should both be 1 and PMT should be END.

If you want 5% annual interest compounded month, enter 5/12 for I%. If you simply want 5% annual interest, enter 5 for I%. Go to N and press ALPHA ENTER to see the number of periods (months or years according to what you entered earlier in this paragraph).