Change percent number to a decimal

Divide the percent number by 100

Y = C ( 1 - r ) to the power of t

Population increase, home value increasing

Equipment depreciating, car value decreasing

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Growth and decay

Term	Definition
Growth	increase, appreciate
growth formula	Y = C ( 1 + r) to the power of t
C	Beginning amount
r	percentage written as a decimal
t	time in years
Change percent number to a decimal	Divide the percent number by 100
Decay	Decrease, depreciate
Decay Formula	Y = C ( 1 - r ) to the power of t
Examples of Growth	Population increase, home value increasing
Examples of Decay	Equipment depreciating, car value decreasing