1793.33% is the change from 15 to 284
Calculation steps:
[( 284 - 15 ) ÷ 15] x 100 = 1793.33%
Formula
Percentage change = [(284 - 15) / 15] x 100
Subtract the new number by the original number
284 - 15 = 269
269 ÷ 15 = 17.933333333333334
17.933333333333334 x 100 = 1793.33%