51.69% is the change from 621 to 942
Calculation steps:
[( 942 - 621 ) ÷ 621] x 100 = 51.69%
Formula
Percentage change = [(942 - 621) / 621] x 100
Subtract the new number by the original number
942 - 621 = 321
321 ÷ 621 = 0.5169082125603864
0.5169082125603864 x 100 = 51.69%