-9.24% is the change from 303 to 275
Calculation steps:
[( 275 - 303 ) ÷ 303] x 100 = -9.24%
Formula
Percentage change = [(275 - 303) / 303] x 100
Subtract the new number by the original number
275 - 303 = -28
-28 ÷ 303 = -0.0924092409240924
-0.0924092409240924 x 100 = -9.24%