67.24% is the change from 580 to 970
Calculation steps:
[( 970 - 580 ) ÷ 580] x 100 = 67.24%
Formula
Percentage change = [(970 - 580) / 580] x 100
Subtract the new number by the original number
970 - 580 = 390
390 ÷ 580 = 0.6724137931034483
0.6724137931034483 x 100 = 67.24%