Short of a loan shark or (equivalently) a credit card company, nobody charges or offers 10% interest per month (equivalent to 214% annually).
But, that is what you asked for so
the answer is 20,000*[(1 + 10/100)12*3 - 1]
= 20,000*[1.136 - 1 ]
= 618,254 - 20,000
= 598,254 (approx).
$194.25 if interest is compounded annually. A little more if compounded quarterly, monthly, or daily.
187.32
322.7
161.35
572.56
$194.25 if interest is compounded annually. A little more if compounded quarterly, monthly, or daily.
635.24
313.37
648.68
187.32
322.7
161.35
572.56
283.52
610.45
275.28
674.43