-86.31% is the change from 168 to 23
Calculation steps:
[( 23 - 168 ) ÷ 168] x 100 = -86.31%
Formula
Percentage change = [(23 - 168) / 168] x 100
Subtract the new number by the original number
23 - 168 = -145
-145 ÷ 168 = -0.8630952380952381
-0.8630952380952381 x 100 = -86.31%