-33.1% is the change from 429 to 287
Calculation steps:
[( 287 - 429 ) ÷ 429] x 100 = -33.1%
Formula
Percentage change = [(287 - 429) / 429] x 100
Subtract the new number by the original number
287 - 429 = -142
-142 ÷ 429 = -0.331002331002331
-0.331002331002331 x 100 = -33.1%