68.16% is the change from 581 to 977
Calculation steps:
[( 977 - 581 ) ÷ 581] x 100 = 68.16%
Formula
Percentage change = [(977 - 581) / 581] x 100
Subtract the new number by the original number
977 - 581 = 396
396 ÷ 581 = 0.6815834767641996
0.6815834767641996 x 100 = 68.16%