42.13% is the change from 686 to 975
Calculation steps:
[( 975 - 686 ) ÷ 686] x 100 = 42.13%
Formula
Percentage change = [(975 - 686) / 686] x 100
Subtract the new number by the original number
975 - 686 = 289
289 ÷ 686 = 0.42128279883381925
0.42128279883381925 x 100 = 42.13%