To determine the days. Interest I Principal P times Rate Per Period r times Number of Periods n Divide an annual rate by 12 to get r if the Period is a month. Simple Interest of an amount is calculated by multiplying the interest rate by the principal amount and the time period.
March 16 April 30 May 31 June 30 July 31 August 31 September 30 October 31 November 30 December 31 January 19.
This calculator can be used to solve various types of simple interest problems. The formula is indeed simple because it only involves multiplication. March 16 April 30 May 31 June 30 July 31 August 31 September 30 October 31 November 30 December 31 January 19. Interest I Principal P times Rate Per Period r times Number of Periods n Divide an annual rate by 12 to get r if the Period is a month.