46.38% is the change from 621 to 909
Calculation steps:
[( 909 - 621 ) ÷ 621] x 100 = 46.38%
Formula
Percentage change = [(909 - 621) / 621] x 100
Subtract the new number by the original number
909 - 621 = 288
288 ÷ 621 = 0.463768115942029
0.463768115942029 x 100 = 46.38%