-52.94% is the change from 34 to 16
Calculation steps:
[( 16 - 34 ) ÷ 34] x 100 = -52.94%
Formula
Percentage change = [(16 - 34) / 34] x 100
Subtract the new number by the original number
16 - 34 = -18
-18 ÷ 34 = -0.5294117647058824
-0.5294117647058824 x 100 = -52.94%