-33.82% is the change from 68 to 45
Calculation steps:
[( 45 - 68 ) ÷ 68] x 100 = -33.82%
Formula
Percentage change = [(45 - 68) / 68] x 100
Subtract the new number by the original number
45 - 68 = -23
-23 ÷ 68 = -0.3382352941176471
-0.3382352941176471 x 100 = -33.82%