600% is the change from 129 to 903
Calculation steps:
[( 903 - 129 ) ÷ 129] x 100 = 600%
Formula
Percentage change = [(903 - 129) / 129] x 100
Subtract the new number by the original number
903 - 129 = 774
774 ÷ 129 = 6
6 x 100 = 600%
Example