-6.48% is the change from 880 to 823
Calculation steps:
[( 823 - 880 ) ÷ 880] x 100 = -6.48%
Formula
Percentage change = [(823 - 880) / 880] x 100
Subtract the new number by the original number
823 - 880 = -57
-57 ÷ 880 = -0.06477272727272727
-0.06477272727272727 x 100 = -6.48%