-65.22% is the change from 23 to 8
Calculation steps:
[( 8 - 23 ) ÷ 23] x 100 = -65.22%
Formula
Percentage change = [(8 - 23) / 23] x 100
Subtract the new number by the original number
8 - 23 = -15
-15 ÷ 23 = -0.6521739130434783
-0.6521739130434783 x 100 = -65.22%