285.88% is the change from 255 to 984
Calculation steps:
[( 984 - 255 ) ÷ 255] x 100 = 285.88%
Formula
Percentage change = [(984 - 255) / 255] x 100
Subtract the new number by the original number
984 - 255 = 729
729 ÷ 255 = 2.8588235294117648
2.8588235294117648 x 100 = 285.88%