102.5% is the change from 160 to 324
Calculation steps:
[( 324 - 160 ) ÷ 160] x 100 = 102.5%
Formula
Percentage change = [(324 - 160) / 160] x 100
Subtract the new number by the original number
324 - 160 = 164
164 ÷ 160 = 1.025
1.025 x 100 = 102.5%
Example