900% is the change from 33 to 330
Calculation steps:
[( 330 - 33 ) ÷ 33] x 100 = 900%
Formula
Percentage change = [(330 - 33) / 33] x 100
Subtract the new number by the original number
330 - 33 = 297
297 ÷ 33 = 9
9 x 100 = 900%
Example