-99.87% is the change from 790 to 1
Calculation steps:
[( 1 - 790 ) ÷ 790] x 100 = -99.87%
Formula
Percentage change = [(1 - 790) / 790] x 100
Subtract the new number by the original number
1 - 790 = -789
-789 ÷ 790 = -0.9987341772151899
-0.9987341772151899 x 100 = -99.87%