-29.17% is the change from 432 to 306
Calculation steps:
[( 306 - 432 ) ÷ 432] x 100 = -29.17%
Formula
Percentage change = [(306 - 432) / 432] x 100
Subtract the new number by the original number
306 - 432 = -126
-126 ÷ 432 = -0.2916666666666667
-0.2916666666666667 x 100 = -29.17%