-7.14% is the change from 28 to 26
Calculation steps:
[( 26 - 28 ) ÷ 28] x 100 = -7.14%
Formula
Percentage change = [(26 - 28) / 28] x 100
Subtract the new number by the original number
26 - 28 = -2
-2 ÷ 28 = -0.07142857142857142
-0.07142857142857142 x 100 = -7.14%