-97.72% is the change from 790 to 18
Calculation steps:
[( 18 - 790 ) ÷ 790] x 100 = -97.72%
Formula
Percentage change = [(18 - 790) / 790] x 100
Subtract the new number by the original number
18 - 790 = -772
-772 ÷ 790 = -0.9772151898734177
-0.9772151898734177 x 100 = -97.72%