-8.76% is the change from 251 to 229
Calculation steps:
[( 229 - 251 ) ÷ 251] x 100 = -8.76%
Formula
Percentage change = [(229 - 251) / 251] x 100
Subtract the new number by the original number
229 - 251 = -22
-22 ÷ 251 = -0.08764940239043825
-0.08764940239043825 x 100 = -8.76%