38% is the change from 621 to 857
Calculation steps:
[( 857 - 621 ) ÷ 621] x 100 = 38%
Formula
Percentage change = [(857 - 621) / 621] x 100
Subtract the new number by the original number
857 - 621 = 236
236 ÷ 621 = 0.38003220611916266
0.38003220611916266 x 100 = 38%