35.59% is the change from 621 to 842
Calculation steps:
[( 842 - 621 ) ÷ 621] x 100 = 35.59%
Formula
Percentage change = [(842 - 621) / 621] x 100
Subtract the new number by the original number
842 - 621 = 221
221 ÷ 621 = 0.355877616747182
0.355877616747182 x 100 = 35.59%