-57.87% is the change from 394 to 166
Calculation steps:
[( 166 - 394 ) ÷ 394] x 100 = -57.87%
Formula
Percentage change = [(166 - 394) / 394] x 100
Subtract the new number by the original number
166 - 394 = -228
-228 ÷ 394 = -0.5786802030456852
-0.5786802030456852 x 100 = -57.87%