-36.12% is the change from 479 to 306
Calculation steps:
[( 306 - 479 ) ÷ 479] x 100 = -36.12%
Formula
Percentage change = [(306 - 479) / 479] x 100
Subtract the new number by the original number
306 - 479 = -173
-173 ÷ 479 = -0.36116910229645094
-0.36116910229645094 x 100 = -36.12%