-4.38% is the change from 251 to 240
Calculation steps:
[( 240 - 251 ) ÷ 251] x 100 = -4.38%
Formula
Percentage change = [(240 - 251) / 251] x 100
Subtract the new number by the original number
240 - 251 = -11
-11 ÷ 251 = -0.043824701195219126
-0.043824701195219126 x 100 = -4.38%