1873.33% is the change from 15 to 296
Calculation steps:
[( 296 - 15 ) ÷ 15] x 100 = 1873.33%
Formula
Percentage change = [(296 - 15) / 15] x 100
Subtract the new number by the original number
296 - 15 = 281
281 ÷ 15 = 18.733333333333334
18.733333333333334 x 100 = 1873.33%