-97.72% is the change from 791 to 18
Calculation steps:
[( 18 - 791 ) ÷ 791] x 100 = -97.72%
Formula
Percentage change = [(18 - 791) / 791] x 100
Subtract the new number by the original number
18 - 791 = -773
-773 ÷ 791 = -0.97724399494311
-0.97724399494311 x 100 = -97.72%