-97.72% is the change from 788 to 18
Calculation steps:
[( 18 - 788 ) ÷ 788] x 100 = -97.72%
Formula
Percentage change = [(18 - 788) / 788] x 100
Subtract the new number by the original number
18 - 788 = -770
-770 ÷ 788 = -0.9771573604060914
-0.9771573604060914 x 100 = -97.72%