-66.18% is the change from 68 to 23
Calculation steps:
[( 23 - 68 ) ÷ 68] x 100 = -66.18%
Formula
Percentage change = [(23 - 68) / 68] x 100
Subtract the new number by the original number
23 - 68 = -45
-45 ÷ 68 = -0.6617647058823529
-0.6617647058823529 x 100 = -66.18%