-11.62% is the change from 284 to 251
Calculation steps:
[( 251 - 284 ) ÷ 284] x 100 = -11.62%
Formula
Percentage change = [(251 - 284) / 284] x 100
Subtract the new number by the original number
251 - 284 = -33
-33 ÷ 284 = -0.11619718309859155
-0.11619718309859155 x 100 = -11.62%