-90.18% is the change from 275 to 27
Calculation steps:
[( 27 - 275 ) ÷ 275] x 100 = -90.18%
Formula
Percentage change = [(27 - 275) / 275] x 100
Subtract the new number by the original number
27 - 275 = -248
-248 ÷ 275 = -0.9018181818181819
-0.9018181818181819 x 100 = -90.18%