361.47% is the change from 109 to 503
Calculation steps:
[( 503 - 109 ) ÷ 109] x 100 = 361.47%
Formula
Percentage change = [(503 - 109) / 109] x 100
Subtract the new number by the original number
503 - 109 = 394
394 ÷ 109 = 3.614678899082569
3.614678899082569 x 100 = 361.47%