-29.41% is the change from 68 to 48
Calculation steps:
[( 48 - 68 ) ÷ 68] x 100 = -29.41%
Formula
Percentage change = [(48 - 68) / 68] x 100
Subtract the new number by the original number
48 - 68 = -20
-20 ÷ 68 = -0.29411764705882354
-0.29411764705882354 x 100 = -29.41%