1090% is the change from 40 to 476
Calculation steps:
[( 476 - 40 ) ÷ 40] x 100 = 1090%
Formula
Percentage change = [(476 - 40) / 40] x 100
Subtract the new number by the original number
476 - 40 = 436
436 ÷ 40 = 10.9
10.9 x 100 = 1090%
Example