-50.7% is the change from 71 to 35
Calculation steps:
[( 35 - 71 ) ÷ 71] x 100 = -50.7%
Formula
Percentage change = [(35 - 71) / 71] x 100
Subtract the new number by the original number
35 - 71 = -36
-36 ÷ 71 = -0.5070422535211268
-0.5070422535211268 x 100 = -50.7%