-27.66% is the change from 47 to 34
Calculation steps:
[( 34 - 47 ) ÷ 47] x 100 = -27.66%
Formula
Percentage change = [(34 - 47) / 47] x 100
Subtract the new number by the original number
34 - 47 = -13
-13 ÷ 47 = -0.2765957446808511
-0.2765957446808511 x 100 = -27.66%