-50.7% is the change from 710 to 350
Calculation steps:
[( 350 - 710 ) ÷ 710] x 100 = -50.7%
Formula
Percentage change = [(350 - 710) / 710] x 100
Subtract the new number by the original number
350 - 710 = -360
-360 ÷ 710 = -0.5070422535211268
-0.5070422535211268 x 100 = -50.7%