35.88% is the change from 641 to 871
Calculation steps:
[( 871 - 641 ) ÷ 641] x 100 = 35.88%
Formula
Percentage change = [(871 - 641) / 641] x 100
Subtract the new number by the original number
871 - 641 = 230
230 ÷ 641 = 0.358814352574103
0.358814352574103 x 100 = 35.88%