Engineering Economy Formulas Simple Interest Calculations Name Formula Cash Flow Diagram interest earned over n periods ܫൌ future value related to present value ܨൌ ሺ1 ሻ present value related to future value ൌ ܨ1 Compound Interest Calculations Name Formula Cash Flow Diagram future value related to present value ܨൌ ሺ1 ሻ present value related to future value ൌ ܨሺ1 ሻ future value accumulated due to n periodic deposits of amount A ܨൌ ܣቈ ሺ1 ሻ െ 1 present value related to n future deposits of A ൌ ܣቈ ሺ1 ሻ െ 1 ሺ1 ሻ
