-21.68% is the change from 429 to 336
Calculation steps:
[( 336 - 429 ) ÷ 429] x 100 = -21.68%
Formula
Percentage change = [(336 - 429) / 429] x 100
Subtract the new number by the original number
336 - 429 = -93
-93 ÷ 429 = -0.21678321678321677
-0.21678321678321677 x 100 = -21.68%