-29.88% is the change from 646 to 453
Calculation steps:
[( 453 - 646 ) ÷ 646] x 100 = -29.88%
Formula
Percentage change = [(453 - 646) / 646] x 100
Subtract the new number by the original number
453 - 646 = -193
-193 ÷ 646 = -0.29876160990712075
-0.29876160990712075 x 100 = -29.88%