This Financial calculator use the general financial formula: (PV+PMT(1+iX)/i)((1+i)^NP-1)+PV+FV=0 to calculate one of the 5 parameters when 4 parameters are know.
Notice: Negative value for owed balance and money paid to the account, positive values for balances in your favor and withdrawn from the account. Usage: Enter 4 out of the 5 fields and calculate the missing value.