-81.68% is the change from 546 to 100
Calculation steps:
[( 100 - 546 ) ÷ 546] x 100 = -81.68%
Formula
Percentage change = [(100 - 546) / 546] x 100
Subtract the new number by the original number
100 - 546 = -446
-446 ÷ 546 = -0.8168498168498168
-0.8168498168498168 x 100 = -81.68%