33.81% is the change from 636 to 851
Calculation steps:
[( 851 - 636 ) ÷ 636] x 100 = 33.81%
Formula
Percentage change = [(851 - 636) / 636] x 100
Subtract the new number by the original number
851 - 636 = 215
215 ÷ 636 = 0.3380503144654088
0.3380503144654088 x 100 = 33.81%