-98.7% is the change from 768 to 10
Calculation steps:
[( 10 - 768 ) ÷ 768] x 100 = -98.7%
Formula
Percentage change = [(10 - 768) / 768] x 100
Subtract the new number by the original number
10 - 768 = -758
-758 ÷ 768 = -0.9869791666666666
-0.9869791666666666 x 100 = -98.7%