50.9% is the change from 332 to 501
Calculation steps:
[( 501 - 332 ) ÷ 332] x 100 = 50.9%
Formula
Percentage change = [(501 - 332) / 332] x 100
Subtract the new number by the original number
501 - 332 = 169
169 ÷ 332 = 0.5090361445783133
0.5090361445783133 x 100 = 50.9%