-6.4% is the change from 453 to 424
Calculation steps:
[( 424 - 453 ) ÷ 453] x 100 = -6.4%
Formula
Percentage change = [(424 - 453) / 453] x 100
Subtract the new number by the original number
424 - 453 = -29
-29 ÷ 453 = -0.0640176600441501
-0.0640176600441501 x 100 = -6.4%