-98.07% is the change from 776 to 15
Calculation steps:
[( 15 - 776 ) ÷ 776] x 100 = -98.07%
Formula
Percentage change = [(15 - 776) / 776] x 100
Subtract the new number by the original number
15 - 776 = -761
-761 ÷ 776 = -0.9806701030927835
-0.9806701030927835 x 100 = -98.07%