54.59% is the change from 621 to 960
Calculation steps:
[( 960 - 621 ) ÷ 621] x 100 = 54.59%
Formula
Percentage change = [(960 - 621) / 621] x 100
Subtract the new number by the original number
960 - 621 = 339
339 ÷ 621 = 0.5458937198067633
0.5458937198067633 x 100 = 54.59%