Chapter 8: Symbols and Formulas Introduced
The Formulas You Need to Know
Symbols Used
[latex]S[/latex] = Maturity value or future value in dollars
[latex]I[/latex] = Interest amount in dollars
[latex]P[/latex] = Principal or present value in dollars
[latex]r[/latex] = Interest rate (in decimal format)
[latex]t[/latex] = Time or term
Formulas Introduced
Simple Interest:
[latex]I=Prt[/latex]
Maturity Value:
[latex]S=P(1+rt)[/latex]
Present Value:
[latex]P=\frac{S}{1+rt}[/latex]