-94.9% is the change from 294 to 15
Calculation steps:
[( 15 - 294 ) ÷ 294] x 100 = -94.9%
Formula
Percentage change = [(15 - 294) / 294] x 100
Subtract the new number by the original number
15 - 294 = -279
-279 ÷ 294 = -0.9489795918367347
-0.9489795918367347 x 100 = -94.9%