-89.78% is the change from 274 to 28
Calculation steps:
[( 28 - 274 ) ÷ 274] x 100 = -89.78%
Formula
Percentage change = [(28 - 274) / 274] x 100
Subtract the new number by the original number
28 - 274 = -246
-246 ÷ 274 = -0.8978102189781022
-0.8978102189781022 x 100 = -89.78%