2940% is the change from 30 to 912
Calculation steps:
[( 912 - 30 ) ÷ 30] x 100 = 2940%
Formula
Percentage change = [(912 - 30) / 30] x 100
Subtract the new number by the original number
912 - 30 = 882
882 ÷ 30 = 29.4
29.4 x 100 = 2940%
Example