-6.05% is the change from 479 to 450
Calculation steps:
[( 450 - 479 ) ÷ 479] x 100 = -6.05%
Formula
Percentage change = [(450 - 479) / 479] x 100
Subtract the new number by the original number
450 - 479 = -29
-29 ÷ 479 = -0.060542797494780795
-0.060542797494780795 x 100 = -6.05%