-47.72% is the change from 591 to 309
Calculation steps:
[( 309 - 591 ) ÷ 591] x 100 = -47.72%
Formula
Percentage change = [(309 - 591) / 591] x 100
Subtract the new number by the original number
309 - 591 = -282
-282 ÷ 591 = -0.47715736040609136
-0.47715736040609136 x 100 = -47.72%