1433.33% is the change from 15 to 230
Calculation steps:
[( 230 - 15 ) ÷ 15] x 100 = 1433.33%
Formula
Percentage change = [(230 - 15) / 15] x 100
Subtract the new number by the original number
230 - 15 = 215
215 ÷ 15 = 14.333333333333334
14.333333333333334 x 100 = 1433.33%