3055.56% is the change from 9 to 284
Calculation steps:
[( 284 - 9 ) ÷ 9] x 100 = 3055.56%
Formula
Percentage change = [(284 - 9) / 9] x 100
Subtract the new number by the original number
284 - 9 = 275
275 ÷ 9 = 30.555555555555557
30.555555555555557 x 100 = 3055.56%