-24.89% is the change from 880 to 661
Calculation steps:
[( 661 - 880 ) ÷ 880] x 100 = -24.89%
Formula
Percentage change = [(661 - 880) / 880] x 100
Subtract the new number by the original number
661 - 880 = -219
-219 ÷ 880 = -0.24886363636363637
-0.24886363636363637 x 100 = -24.89%