-69.6% is the change from 546 to 166
Calculation steps:
[( 166 - 546 ) ÷ 546] x 100 = -69.6%
Formula
Percentage change = [(166 - 546) / 546] x 100
Subtract the new number by the original number
166 - 546 = -380
-380 ÷ 546 = -0.6959706959706959
-0.6959706959706959 x 100 = -69.6%