-35.56% is the change from 478 to 308
Calculation steps:
[( 308 - 478 ) ÷ 478] x 100 = -35.56%
Formula
Percentage change = [(308 - 478) / 478] x 100
Subtract the new number by the original number
308 - 478 = -170
-170 ÷ 478 = -0.35564853556485354
-0.35564853556485354 x 100 = -35.56%