-47.31% is the change from 279 to 147
Calculation steps:
[( 147 - 279 ) ÷ 279] x 100 = -47.31%
Formula
Percentage change = [(147 - 279) / 279] x 100
Subtract the new number by the original number
147 - 279 = -132
-132 ÷ 279 = -0.4731182795698925
-0.4731182795698925 x 100 = -47.31%