37.04% is the change from 621 to 851
Calculation steps:
[( 851 - 621 ) ÷ 621] x 100 = 37.04%
Formula
Percentage change = [(851 - 621) / 621] x 100
Subtract the new number by the original number
851 - 621 = 230
230 ÷ 621 = 0.37037037037037035
0.37037037037037035 x 100 = 37.04%