31.89% is the change from 646 to 852
Calculation steps:
[( 852 - 646 ) ÷ 646] x 100 = 31.89%
Formula
Percentage change = [(852 - 646) / 646] x 100
Subtract the new number by the original number
852 - 646 = 206
206 ÷ 646 = 0.3188854489164087
0.3188854489164087 x 100 = 31.89%