2300% is the change from 10 to 240
Calculation steps:
[( 240 - 10 ) ÷ 10] x 100 = 2300%
Formula
Percentage change = [(240 - 10) / 10] x 100
Subtract the new number by the original number
240 - 10 = 230
230 ÷ 10 = 23
23 x 100 = 2300%
Example