-94.49% is the change from 272 to 15
Calculation steps:
[( 15 - 272 ) ÷ 272] x 100 = -94.49%
Formula
Percentage change = [(15 - 272) / 272] x 100
Subtract the new number by the original number
15 - 272 = -257
-257 ÷ 272 = -0.9448529411764706
-0.9448529411764706 x 100 = -94.49%