1100% is the change from 45 to 540
Calculation steps:
[( 540 - 45 ) ÷ 45] x 100 = 1100%
Formula
Percentage change = [(540 - 45) / 45] x 100
Subtract the new number by the original number
540 - 45 = 495
495 ÷ 45 = 11
11 x 100 = 1100%
Example