-68.33% is the change from 821 to 260
Calculation steps:
[( 260 - 821 ) ÷ 821] x 100 = -68.33%
Formula
Percentage change = [(260 - 821) / 821] x 100
Subtract the new number by the original number
260 - 821 = -561
-561 ÷ 821 = -0.6833130328867235
-0.6833130328867235 x 100 = -68.33%