45.57% is the change from 621 to 904
Calculation steps:
[( 904 - 621 ) ÷ 621] x 100 = 45.57%
Formula
Percentage change = [(904 - 621) / 621] x 100
Subtract the new number by the original number
904 - 621 = 283
283 ÷ 621 = 0.4557165861513688
0.4557165861513688 x 100 = 45.57%