-31.37% is the change from 577 to 396
Calculation steps:
[( 396 - 577 ) ÷ 577] x 100 = -31.37%
Formula
Percentage change = [(396 - 577) / 577] x 100
Subtract the new number by the original number
396 - 577 = -181
-181 ÷ 577 = -0.31369150779896016
-0.31369150779896016 x 100 = -31.37%