1157.5% is the change from 40 to 503
Calculation steps:
[( 503 - 40 ) ÷ 40] x 100 = 1157.5%
Formula
Percentage change = [(503 - 40) / 40] x 100
Subtract the new number by the original number
503 - 40 = 463
463 ÷ 40 = 11.575
11.575 x 100 = 1157.5%
Example