-96.69% is the change from 272 to 9
Calculation steps:
[( 9 - 272 ) ÷ 272] x 100 = -96.69%
Formula
Percentage change = [(9 - 272) / 272] x 100
Subtract the new number by the original number
9 - 272 = -263
-263 ÷ 272 = -0.9669117647058824
-0.9669117647058824 x 100 = -96.69%