2909.09% is the change from 11 to 331
Calculation steps:
[( 331 - 11 ) ÷ 11] x 100 = 2909.09%
Formula
Percentage change = [(331 - 11) / 11] x 100
Subtract the new number by the original number
331 - 11 = 320
320 ÷ 11 = 29.09090909090909
29.09090909090909 x 100 = 2909.09%