2120% is the change from 15 to 333
Calculation steps:
[( 333 - 15 ) ÷ 15] x 100 = 2120%
Formula
Percentage change = [(333 - 15) / 15] x 100
Subtract the new number by the original number
333 - 15 = 318
318 ÷ 15 = 21.2
21.2 x 100 = 2120%
Example