-84.77% is the change from 558 to 85
Calculation steps:
[( 85 - 558 ) ÷ 558] x 100 = -84.77%
Formula
Percentage change = [(85 - 558) / 558] x 100
Subtract the new number by the original number
85 - 558 = -473
-473 ÷ 558 = -0.8476702508960573
-0.8476702508960573 x 100 = -84.77%