-84.53% is the change from 556 to 86
Calculation steps:
[( 86 - 556 ) ÷ 556] x 100 = -84.53%
Formula
Percentage change = [(86 - 556) / 556] x 100
Subtract the new number by the original number
86 - 556 = -470
-470 ÷ 556 = -0.8453237410071942
-0.8453237410071942 x 100 = -84.53%