2988.89% is the change from 9 to 278
Calculation steps:
[( 278 - 9 ) ÷ 9] x 100 = 2988.89%
Formula
Percentage change = [(278 - 9) / 9] x 100
Subtract the new number by the original number
278 - 9 = 269
269 ÷ 9 = 29.88888888888889
29.88888888888889 x 100 = 2988.89%