-69.65% is the change from 547 to 166
Calculation steps:
[( 166 - 547 ) ÷ 547] x 100 = -69.65%
Formula
Percentage change = [(166 - 547) / 547] x 100
Subtract the new number by the original number
166 - 547 = -381
-381 ÷ 547 = -0.696526508226691
-0.696526508226691 x 100 = -69.65%