-39.82% is the change from 977 to 588
Calculation steps:
[( 588 - 977 ) ÷ 977] x 100 = -39.82%
Formula
Percentage change = [(588 - 977) / 977] x 100
Subtract the new number by the original number
588 - 977 = -389
-389 ÷ 977 = -0.39815762538382804
-0.39815762538382804 x 100 = -39.82%