-40.79% is the change from 478 to 283
Calculation steps:
[( 283 - 478 ) ÷ 478] x 100 = -40.79%
Formula
Percentage change = [(283 - 478) / 478] x 100
Subtract the new number by the original number
283 - 478 = -195
-195 ÷ 478 = -0.40794979079497906
-0.40794979079497906 x 100 = -40.79%