-0.38% is the change from 260 to 259
Calculation steps:
[( 259 - 260 ) ÷ 260] x 100 = -0.38%
Formula
Percentage change = [(259 - 260) / 260] x 100
Subtract the new number by the original number
259 - 260 = -1
-1 ÷ 260 = -0.0038461538461538464
-0.0038461538461538464 x 100 = -0.38%