-20.25% is the change from 326 to 260
Calculation steps:
[( 260 - 326 ) ÷ 326] x 100 = -20.25%
Formula
Percentage change = [(260 - 326) / 326] x 100
Subtract the new number by the original number
260 - 326 = -66
-66 ÷ 326 = -0.20245398773006135
-0.20245398773006135 x 100 = -20.25%