-97.09% is the change from 275 to 8
Calculation steps:
[( 8 - 275 ) ÷ 275] x 100 = -97.09%
Formula
Percentage change = [(8 - 275) / 275] x 100
Subtract the new number by the original number
8 - 275 = -267
-267 ÷ 275 = -0.9709090909090909
-0.9709090909090909 x 100 = -97.09%