-63.3% is the change from 880 to 323
Calculation steps:
[( 323 - 880 ) ÷ 880] x 100 = -63.3%
Formula
Percentage change = [(323 - 880) / 880] x 100
Subtract the new number by the original number
323 - 880 = -557
-557 ÷ 880 = -0.6329545454545454
-0.6329545454545454 x 100 = -63.3%