3077.78% is the change from 9 to 286
Calculation steps:
[( 286 - 9 ) ÷ 9] x 100 = 3077.78%
Formula
Percentage change = [(286 - 9) / 9] x 100
Subtract the new number by the original number
286 - 9 = 277
277 ÷ 9 = 30.77777777777778
30.77777777777778 x 100 = 3077.78%