33.64% is the change from 645 to 862
Calculation steps:
[( 862 - 645 ) ÷ 645] x 100 = 33.64%
Formula
Percentage change = [(862 - 645) / 645] x 100
Subtract the new number by the original number
862 - 645 = 217
217 ÷ 645 = 0.3364341085271318
0.3364341085271318 x 100 = 33.64%