-40.55% is the change from 471 to 280
Calculation steps:
[( 280 - 471 ) ÷ 471] x 100 = -40.55%
Formula
Percentage change = [(280 - 471) / 471] x 100
Subtract the new number by the original number
280 - 471 = -191
-191 ÷ 471 = -0.40552016985138006
-0.40552016985138006 x 100 = -40.55%