-42.26% is the change from 478 to 276
Calculation steps:
[( 276 - 478 ) ÷ 478] x 100 = -42.26%
Formula
Percentage change = [(276 - 478) / 478] x 100
Subtract the new number by the original number
276 - 478 = -202
-202 ÷ 478 = -0.4225941422594142
-0.4225941422594142 x 100 = -42.26%