-76.13% is the change from 821 to 196
Calculation steps:
[( 196 - 821 ) ÷ 821] x 100 = -76.13%
Formula
Percentage change = [(196 - 821) / 821] x 100
Subtract the new number by the original number
196 - 821 = -625
-625 ÷ 821 = -0.761266747868453
-0.761266747868453 x 100 = -76.13%