35.71% is the change from 686 to 931
Calculation steps:
[( 931 - 686 ) ÷ 686] x 100 = 35.71%
Formula
Percentage change = [(931 - 686) / 686] x 100
Subtract the new number by the original number
931 - 686 = 245
245 ÷ 686 = 0.35714285714285715
0.35714285714285715 x 100 = 35.71%