-97.6% is the change from 791 to 19
Calculation steps:
[( 19 - 791 ) ÷ 791] x 100 = -97.6%
Formula
Percentage change = [(19 - 791) / 791] x 100
Subtract the new number by the original number
19 - 791 = -772
-772 ÷ 791 = -0.9759797724399494
-0.9759797724399494 x 100 = -97.6%