52.17% is the change from 621 to 945
Calculation steps:
[( 945 - 621 ) ÷ 621] x 100 = 52.17%
Formula
Percentage change = [(945 - 621) / 621] x 100
Subtract the new number by the original number
945 - 621 = 324
324 ÷ 621 = 0.5217391304347826
0.5217391304347826 x 100 = 52.17%