-40.78% is the change from 721 to 427
Calculation steps:
[( 427 - 721 ) ÷ 721] x 100 = -40.78%
Formula
Percentage change = [(427 - 721) / 721] x 100
Subtract the new number by the original number
427 - 721 = -294
-294 ÷ 721 = -0.4077669902912621
-0.4077669902912621 x 100 = -40.78%