2812.9% is the change from 31 to 903
Calculation steps:
[( 903 - 31 ) ÷ 31] x 100 = 2812.9%
Formula
Percentage change = [(903 - 31) / 31] x 100
Subtract the new number by the original number
903 - 31 = 872
872 ÷ 31 = 28.129032258064516
28.129032258064516 x 100 = 2812.9%