40.99% is the change from 688 to 970
Calculation steps:
[( 970 - 688 ) ÷ 688] x 100 = 40.99%
Formula
Percentage change = [(970 - 688) / 688] x 100
Subtract the new number by the original number
970 - 688 = 282
282 ÷ 688 = 0.40988372093023256
0.40988372093023256 x 100 = 40.99%