-66.29% is the change from 439 to 148
Calculation steps:
[( 148 - 439 ) ÷ 439] x 100 = -66.29%
Formula
Percentage change = [(148 - 439) / 439] x 100
Subtract the new number by the original number
148 - 439 = -291
-291 ÷ 439 = -0.662870159453303
-0.662870159453303 x 100 = -66.29%