48.15% is the change from 621 to 920
Calculation steps:
[( 920 - 621 ) ÷ 621] x 100 = 48.15%
Formula
Percentage change = [(920 - 621) / 621] x 100
Subtract the new number by the original number
920 - 621 = 299
299 ÷ 621 = 0.48148148148148145
0.48148148148148145 x 100 = 48.15%