-69.32% is the change from 577 to 177
Calculation steps:
[( 177 - 577 ) ÷ 577] x 100 = -69.32%
Formula
Percentage change = [(177 - 577) / 577] x 100
Subtract the new number by the original number
177 - 577 = -400
-400 ÷ 577 = -0.6932409012131716
-0.6932409012131716 x 100 = -69.32%