-34.85% is the change from 855 to 557
Calculation steps:
[( 557 - 855 ) ÷ 855] x 100 = -34.85%
Formula
Percentage change = [(557 - 855) / 855] x 100
Subtract the new number by the original number
557 - 855 = -298
-298 ÷ 855 = -0.3485380116959064
-0.3485380116959064 x 100 = -34.85%