-3.47% is the change from 259 to 250
Calculation steps:
[( 250 - 259 ) ÷ 259] x 100 = -3.47%
Formula
Percentage change = [(250 - 259) / 259] x 100
Subtract the new number by the original number
250 - 259 = -9
-9 ÷ 259 = -0.03474903474903475
-0.03474903474903475 x 100 = -3.47%