-6.45% is the change from 434 to 406
Calculation steps:
[( 406 - 434 ) ÷ 434] x 100 = -6.45%
Formula
Percentage change = [(406 - 434) / 434] x 100
Subtract the new number by the original number
406 - 434 = -28
-28 ÷ 434 = -0.06451612903225806
-0.06451612903225806 x 100 = -6.45%