39.65% is the change from 686 to 958
Calculation steps:
[( 958 - 686 ) ÷ 686] x 100 = 39.65%
Formula
Percentage change = [(958 - 686) / 686] x 100
Subtract the new number by the original number
958 - 686 = 272
272 ÷ 686 = 0.3965014577259475
0.3965014577259475 x 100 = 39.65%