-48.92% is the change from 325 to 166
Calculation steps:
[( 166 - 325 ) ÷ 325] x 100 = -48.92%
Formula
Percentage change = [(166 - 325) / 325] x 100
Subtract the new number by the original number
166 - 325 = -159
-159 ÷ 325 = -0.48923076923076925
-0.48923076923076925 x 100 = -48.92%