-42.75% is the change from 531 to 304
Calculation steps:
[( 304 - 531 ) ÷ 531] x 100 = -42.75%
Formula
Percentage change = [(304 - 531) / 531] x 100
Subtract the new number by the original number
304 - 531 = -227
-227 ÷ 531 = -0.4274952919020716
-0.4274952919020716 x 100 = -42.75%