-90.24% is the change from 799 to 78
Calculation steps:
[( 78 - 799 ) ÷ 799] x 100 = -90.24%
Formula
Percentage change = [(78 - 799) / 799] x 100
Subtract the new number by the original number
78 - 799 = -721
-721 ÷ 799 = -0.9023779724655819
-0.9023779724655819 x 100 = -90.24%