-96.36% is the change from 275 to 10
Calculation steps:
[( 10 - 275 ) ÷ 275] x 100 = -96.36%
Formula
Percentage change = [(10 - 275) / 275] x 100
Subtract the new number by the original number
10 - 275 = -265
-265 ÷ 275 = -0.9636363636363636
-0.9636363636363636 x 100 = -96.36%