54.94% is the change from 324 to 502
Calculation steps:
[( 502 - 324 ) ÷ 324] x 100 = 54.94%
Formula
Percentage change = [(502 - 324) / 324] x 100
Subtract the new number by the original number
502 - 324 = 178
178 ÷ 324 = 0.5493827160493827
0.5493827160493827 x 100 = 54.94%