-45.39% is the change from 531 to 290
Calculation steps:
[( 290 - 531 ) ÷ 531] x 100 = -45.39%
Formula
Percentage change = [(290 - 531) / 531] x 100
Subtract the new number by the original number
290 - 531 = -241
-241 ÷ 531 = -0.4538606403013183
-0.4538606403013183 x 100 = -45.39%