-84.31% is the change from 548 to 86
Calculation steps:
[( 86 - 548 ) ÷ 548] x 100 = -84.31%
Formula
Percentage change = [(86 - 548) / 548] x 100
Subtract the new number by the original number
86 - 548 = -462
-462 ÷ 548 = -0.843065693430657
-0.843065693430657 x 100 = -84.31%