2788.89% is the change from 9 to 260
Calculation steps:
[( 260 - 9 ) ÷ 9] x 100 = 2788.89%
Formula
Percentage change = [(260 - 9) / 9] x 100
Subtract the new number by the original number
260 - 9 = 251
251 ÷ 9 = 27.88888888888889
27.88888888888889 x 100 = 2788.89%