37.93% is the change from 646 to 891
Calculation steps:
[( 891 - 646 ) ÷ 646] x 100 = 37.93%
Formula
Percentage change = [(891 - 646) / 646] x 100
Subtract the new number by the original number
891 - 646 = 245
245 ÷ 646 = 0.37925696594427244
0.37925696594427244 x 100 = 37.93%