400% is the change from 11 to 55
Calculation steps:
[( 55 - 11 ) ÷ 11] x 100 = 400%
Formula
Percentage change = [(55 - 11) / 11] x 100
Subtract the new number by the original number
55 - 11 = 44
44 ÷ 11 = 4
4 x 100 = 400%
Example