2855.56% is the change from 9 to 266
Calculation steps:
[( 266 - 9 ) ÷ 9] x 100 = 2855.56%
Formula
Percentage change = [(266 - 9) / 9] x 100
Subtract the new number by the original number
266 - 9 = 257
257 ÷ 9 = 28.555555555555557
28.555555555555557 x 100 = 2855.56%