-23.4% is the change from 577 to 442
Calculation steps:
[( 442 - 577 ) ÷ 577] x 100 = -23.4%
Formula
Percentage change = [(442 - 577) / 577] x 100
Subtract the new number by the original number
442 - 577 = -135
-135 ÷ 577 = -0.2339688041594454
-0.2339688041594454 x 100 = -23.4%