-3.36% is the change from 268 to 259
Calculation steps:
[( 259 - 268 ) ÷ 268] x 100 = -3.36%
Formula
Percentage change = [(259 - 268) / 268] x 100
Subtract the new number by the original number
259 - 268 = -9
-9 ÷ 268 = -0.033582089552238806
-0.033582089552238806 x 100 = -3.36%