34.48% is the change from 641 to 862
Calculation steps:
[( 862 - 641 ) ÷ 641] x 100 = 34.48%
Formula
Percentage change = [(862 - 641) / 641] x 100
Subtract the new number by the original number
862 - 641 = 221
221 ÷ 641 = 0.34477379095163807
0.34477379095163807 x 100 = 34.48%