-50.35% is the change from 715 to 355
Calculation steps:
[( 355 - 715 ) ÷ 715] x 100 = -50.35%
Formula
Percentage change = [(355 - 715) / 715] x 100
Subtract the new number by the original number
355 - 715 = -360
-360 ÷ 715 = -0.5034965034965035
-0.5034965034965035 x 100 = -50.35%