-66.61% is the change from 542 to 181
Calculation steps:
[( 181 - 542 ) ÷ 542] x 100 = -66.61%
Formula
Percentage change = [(181 - 542) / 542] x 100
Subtract the new number by the original number
181 - 542 = -361
-361 ÷ 542 = -0.6660516605166051
-0.6660516605166051 x 100 = -66.61%