30.19% is the change from 646 to 841
Calculation steps:
[( 841 - 646 ) ÷ 646] x 100 = 30.19%
Formula
Percentage change = [(841 - 646) / 646] x 100
Subtract the new number by the original number
841 - 646 = 195
195 ÷ 646 = 0.3018575851393189
0.3018575851393189 x 100 = 30.19%