-42.8% is the change from 479 to 274
Calculation steps:
[( 274 - 479 ) ÷ 479] x 100 = -42.8%
Formula
Percentage change = [(274 - 479) / 479] x 100
Subtract the new number by the original number
274 - 479 = -205
-205 ÷ 479 = -0.4279749478079332
-0.4279749478079332 x 100 = -42.8%