-20.59% is the change from 68 to 54
Calculation steps:
[( 54 - 68 ) ÷ 68] x 100 = -20.59%
Formula
Percentage change = [(54 - 68) / 68] x 100
Subtract the new number by the original number
54 - 68 = -14
-14 ÷ 68 = -0.20588235294117646
-0.20588235294117646 x 100 = -20.59%