54.11% is the change from 621 to 957
Calculation steps:
[( 957 - 621 ) ÷ 621] x 100 = 54.11%
Formula
Percentage change = [(957 - 621) / 621] x 100
Subtract the new number by the original number
957 - 621 = 336
336 ÷ 621 = 0.5410628019323671
0.5410628019323671 x 100 = 54.11%