-56.41% is the change from 78 to 34
Calculation steps:
[( 34 - 78 ) ÷ 78] x 100 = -56.41%
Formula
Percentage change = [(34 - 78) / 78] x 100
Subtract the new number by the original number
34 - 78 = -44
-44 ÷ 78 = -0.5641025641025641
-0.5641025641025641 x 100 = -56.41%