96.84% is the change from 285 to 561
Calculation steps:
[( 561 - 285 ) ÷ 285] x 100 = 96.84%
Formula
Percentage change = [(561 - 285) / 285] x 100
Subtract the new number by the original number
561 - 285 = 276
276 ÷ 285 = 0.968421052631579
0.968421052631579 x 100 = 96.84%