-97.45% is the change from 275 to 7
Calculation steps:
[( 7 - 275 ) ÷ 275] x 100 = -97.45%
Formula
Percentage change = [(7 - 275) / 275] x 100
Subtract the new number by the original number
7 - 275 = -268
-268 ÷ 275 = -0.9745454545454545
-0.9745454545454545 x 100 = -97.45%