-31.48% is the change from 721 to 494
Calculation steps:
[( 494 - 721 ) ÷ 721] x 100 = -31.48%
Formula
Percentage change = [(494 - 721) / 721] x 100
Subtract the new number by the original number
494 - 721 = -227
-227 ÷ 721 = -0.31484049930651875
-0.31484049930651875 x 100 = -31.48%