1097.62% is the change from 42 to 503
Calculation steps:
[( 503 - 42 ) ÷ 42] x 100 = 1097.62%
Formula
Percentage change = [(503 - 42) / 42] x 100
Subtract the new number by the original number
503 - 42 = 461
461 ÷ 42 = 10.976190476190476
10.976190476190476 x 100 = 1097.62%