Finance App TVM

[Albert Chan]

Group size controls how amortization table look like. 1 ≤ size ≤ N
It is the same amortization table, just shown differently (say, per year summary)

if size = 1, amortization table show it all in details, 1 line per period.
if size = N, only 1 line shown, total principle paid, interest paid, and balance.