-15.19% is the change from 968 to 821
Calculation steps:
[( 821 - 968 ) ÷ 968] x 100 = -15.19%
Formula
Percentage change = [(821 - 968) / 968] x 100
Subtract the new number by the original number
821 - 968 = -147
-147 ÷ 968 = -0.1518595041322314
-0.1518595041322314 x 100 = -15.19%