-12.55% is the change from 821 to 718
Calculation steps:
[( 718 - 821 ) ÷ 821] x 100 = -12.55%
Formula
Percentage change = [(718 - 821) / 821] x 100
Subtract the new number by the original number
718 - 821 = -103
-103 ÷ 821 = -0.12545676004872108
-0.12545676004872108 x 100 = -12.55%