64.32% is the change from 597 to 981
Calculation steps:
[( 981 - 597 ) ÷ 597] x 100 = 64.32%
Formula
Percentage change = [(981 - 597) / 597] x 100
Subtract the new number by the original number
981 - 597 = 384
384 ÷ 597 = 0.6432160804020101
0.6432160804020101 x 100 = 64.32%