-20.93% is the change from 43 to 34
Calculation steps:
[( 34 - 43 ) ÷ 43] x 100 = -20.93%
Formula
Percentage change = [(34 - 43) / 43] x 100
Subtract the new number by the original number
34 - 43 = -9
-9 ÷ 43 = -0.20930232558139536
-0.20930232558139536 x 100 = -20.93%