-97.65% is the change from 808 to 19
Calculation steps:
[( 19 - 808 ) ÷ 808] x 100 = -97.65%
Formula
Percentage change = [(19 - 808) / 808] x 100
Subtract the new number by the original number
19 - 808 = -789
-789 ÷ 808 = -0.9764851485148515
-0.9764851485148515 x 100 = -97.65%