-62.19% is the change from 439 to 166
Calculation steps:
[( 166 - 439 ) ÷ 439] x 100 = -62.19%
Formula
Percentage change = [(166 - 439) / 439] x 100
Subtract the new number by the original number
166 - 439 = -273
-273 ÷ 439 = -0.621867881548975
-0.621867881548975 x 100 = -62.19%