-29.31% is the change from 788 to 557
Calculation steps:
[( 557 - 788 ) ÷ 788] x 100 = -29.31%
Formula
Percentage change = [(557 - 788) / 788] x 100
Subtract the new number by the original number
557 - 788 = -231
-231 ÷ 788 = -0.29314720812182743
-0.29314720812182743 x 100 = -29.31%