-26.48% is the change from 880 to 647
Calculation steps:
[( 647 - 880 ) ÷ 880] x 100 = -26.48%
Formula
Percentage change = [(647 - 880) / 880] x 100
Subtract the new number by the original number
647 - 880 = -233
-233 ÷ 880 = -0.26477272727272727
-0.26477272727272727 x 100 = -26.48%