34.63% is the change from 641 to 863
Calculation steps:
[( 863 - 641 ) ÷ 641] x 100 = 34.63%
Formula
Percentage change = [(863 - 641) / 641] x 100
Subtract the new number by the original number
863 - 641 = 222
222 ÷ 641 = 0.3463338533541342
0.3463338533541342 x 100 = 34.63%