-52.84% is the change from 721 to 340
Calculation steps:
[( 340 - 721 ) ÷ 721] x 100 = -52.84%
Formula
Percentage change = [(340 - 721) / 721] x 100
Subtract the new number by the original number
340 - 721 = -381
-381 ÷ 721 = -0.5284327323162274
-0.5284327323162274 x 100 = -52.84%