-3% is the change from 433 to 420
Calculation steps:
[( 420 - 433 ) ÷ 433] x 100 = -3%
Formula
Percentage change = [(420 - 433) / 433] x 100
Subtract the new number by the original number
420 - 433 = -13
-13 ÷ 433 = -0.03002309468822171
-0.03002309468822171 x 100 = -3%