-40.6% is the change from 436 to 259
Calculation steps:
[( 259 - 436 ) ÷ 436] x 100 = -40.6%
Formula
Percentage change = [(259 - 436) / 436] x 100
Subtract the new number by the original number
259 - 436 = -177
-177 ÷ 436 = -0.4059633027522936
-0.4059633027522936 x 100 = -40.6%