-97.78% is the change from 854 to 19
Calculation steps:
[( 19 - 854 ) ÷ 854] x 100 = -97.78%
Formula
Percentage change = [(19 - 854) / 854] x 100
Subtract the new number by the original number
19 - 854 = -835
-835 ÷ 854 = -0.977751756440281
-0.977751756440281 x 100 = -97.78%