-96.7% is the change from 546 to 18
Calculation steps:
[( 18 - 546 ) ÷ 546] x 100 = -96.7%
Formula
Percentage change = [(18 - 546) / 546] x 100
Subtract the new number by the original number
18 - 546 = -528
-528 ÷ 546 = -0.967032967032967
-0.967032967032967 x 100 = -96.7%