-28% is the change from 275 to 198
Calculation steps:
[( 198 - 275 ) ÷ 275] x 100 = -28%
Formula
Percentage change = [(198 - 275) / 275] x 100
Subtract the new number by the original number
198 - 275 = -77
-77 ÷ 275 = -0.28
-0.28 x 100 = -28%
Example