-29.58% is the change from 791 to 557
Calculation steps:
[( 557 - 791 ) ÷ 791] x 100 = -29.58%
Formula
Percentage change = [(557 - 791) / 791] x 100
Subtract the new number by the original number
557 - 791 = -234
-234 ÷ 791 = -0.29582806573957016
-0.29582806573957016 x 100 = -29.58%