-8.06% is the change from 434 to 399
Calculation steps:
[( 399 - 434 ) ÷ 434] x 100 = -8.06%
Formula
Percentage change = [(399 - 434) / 434] x 100
Subtract the new number by the original number
399 - 434 = -35
-35 ÷ 434 = -0.08064516129032258
-0.08064516129032258 x 100 = -8.06%