-51.78% is the change from 591 to 285
Calculation steps:
[( 285 - 591 ) ÷ 591] x 100 = -51.78%
Formula
Percentage change = [(285 - 591) / 591] x 100
Subtract the new number by the original number
285 - 591 = -306
-306 ÷ 591 = -0.5177664974619289
-0.5177664974619289 x 100 = -51.78%