## Calculator

## Formula

A = ( P / r ) * [ 1 – (1+r)^{-N} ]

**A** = Loan Amount
**P** = Payment Amount
**r** = Rate of Interest (compounded)
**N** = Number of Payments

**Rate of Interest Compounded is:**

- Monthly:
**r = i / 1200 и N = n * 12**
- Quarterly:
**r = i / 400 и N = n * 4**
- Half yearly:
**r = i / 200 и N = n * 2**
- Yearly:
**r = i / 100 и N = n**