64.13% is the change from 591 to 970
Calculation steps:
[( 970 - 591 ) ÷ 591] x 100 = 64.13%
Formula
Percentage change = [(970 - 591) / 591] x 100
Subtract the new number by the original number
970 - 591 = 379
379 ÷ 591 = 0.6412859560067682
0.6412859560067682 x 100 = 64.13%