-69.1% is the change from 479 to 148
Calculation steps:
[( 148 - 479 ) ÷ 479] x 100 = -69.1%
Formula
Percentage change = [(148 - 479) / 479] x 100
Subtract the new number by the original number
148 - 479 = -331
-331 ÷ 479 = -0.6910229645093946
-0.6910229645093946 x 100 = -69.1%