-96.67% is the change from 541 to 18
Calculation steps:
[( 18 - 541 ) ÷ 541] x 100 = -96.67%
Formula
Percentage change = [(18 - 541) / 541] x 100
Subtract the new number by the original number
18 - 541 = -523
-523 ÷ 541 = -0.966728280961183
-0.966728280961183 x 100 = -96.67%