-95.8% is the change from 715 to 30
Calculation steps:
[( 30 - 715 ) ÷ 715] x 100 = -95.8%
Formula
Percentage change = [(30 - 715) / 715] x 100
Subtract the new number by the original number
30 - 715 = -685
-685 ÷ 715 = -0.958041958041958
-0.958041958041958 x 100 = -95.8%