1900% is the change from 33 to 660
Calculation steps:
[( 660 - 33 ) ÷ 33] x 100 = 1900%
Formula
Percentage change = [(660 - 33) / 33] x 100
Subtract the new number by the original number
660 - 33 = 627
627 ÷ 33 = 19
19 x 100 = 1900%
Example