-85.38% is the change from 554 to 81
Calculation steps:
[( 81 - 554 ) ÷ 554] x 100 = -85.38%
Formula
Percentage change = [(81 - 554) / 554] x 100
Subtract the new number by the original number
81 - 554 = -473
-473 ÷ 554 = -0.8537906137184116
-0.8537906137184116 x 100 = -85.38%