-32.35% is the change from 34 to 23
Calculation steps:
[( 23 - 34 ) ÷ 34] x 100 = -32.35%
Formula
Percentage change = [(23 - 34) / 34] x 100
Subtract the new number by the original number
23 - 34 = -11
-11 ÷ 34 = -0.3235294117647059
-0.3235294117647059 x 100 = -32.35%