2990% is the change from 30 to 927
Calculation steps:
[( 927 - 30 ) ÷ 30] x 100 = 2990%
Formula
Percentage change = [(927 - 30) / 30] x 100
Subtract the new number by the original number
927 - 30 = 897
897 ÷ 30 = 29.9
29.9 x 100 = 2990%
Example