-98.59% is the change from 780 to 11
Calculation steps:
[( 11 - 780 ) ÷ 780] x 100 = -98.59%
Formula
Percentage change = [(11 - 780) / 780] x 100
Subtract the new number by the original number
11 - 780 = -769
-769 ÷ 780 = -0.985897435897436
-0.985897435897436 x 100 = -98.59%