1560% is the change from 15 to 249
Calculation steps:
[( 249 - 15 ) ÷ 15] x 100 = 1560%
Formula
Percentage change = [(249 - 15) / 15] x 100
Subtract the new number by the original number
249 - 15 = 234
234 ÷ 15 = 15.6
15.6 x 100 = 1560%
Example