4930% is the change from 10 to 503
Calculation steps:
[( 503 - 10 ) ÷ 10] x 100 = 4930%
Formula
Percentage change = [(503 - 10) / 10] x 100
Subtract the new number by the original number
503 - 10 = 493
493 ÷ 10 = 49.3
49.3 x 100 = 4930%
Example