-51.32% is the change from 341 to 166
Calculation steps:
[( 166 - 341 ) ÷ 341] x 100 = -51.32%
Formula
Percentage change = [(166 - 341) / 341] x 100
Subtract the new number by the original number
166 - 341 = -175
-175 ÷ 341 = -0.5131964809384164
-0.5131964809384164 x 100 = -51.32%