Below, A Refers to the upcoming price of the expense; P refers to the principal amount to be invested; r refers to the rate of fascination; n refers to the number of times the fascination gets compounded each year; t refers back to the tenure (in years) of financial investment. https://www.google.com/maps/d/u/0/viewer?mid=1o3vHoDG_5EIkMXyD_8nuLLiHqxZbkJg