-89.82% is the change from 275 to 28
Calculation steps:
[( 28 - 275 ) ÷ 275] x 100 = -89.82%
Formula
Percentage change = [(28 - 275) / 275] x 100
Subtract the new number by the original number
28 - 275 = -247
-247 ÷ 275 = -0.8981818181818182
-0.8981818181818182 x 100 = -89.82%