-3.78% is the change from 450 to 433
Calculation steps:
[( 433 - 450 ) ÷ 450] x 100 = -3.78%
Formula
Percentage change = [(433 - 450) / 450] x 100
Subtract the new number by the original number
433 - 450 = -17
-17 ÷ 450 = -0.03777777777777778
-0.03777777777777778 x 100 = -3.78%