-51.46% is the change from 721 to 350
Calculation steps:
[( 350 - 721 ) ÷ 721] x 100 = -51.46%
Formula
Percentage change = [(350 - 721) / 721] x 100
Subtract the new number by the original number
350 - 721 = -371
-371 ÷ 721 = -0.5145631067961165
-0.5145631067961165 x 100 = -51.46%