-52.29% is the change from 677 to 323
Calculation steps:
[( 323 - 677 ) ÷ 677] x 100 = -52.29%
Formula
Percentage change = [(323 - 677) / 677] x 100
Subtract the new number by the original number
323 - 677 = -354
-354 ÷ 677 = -0.5228951255539144
-0.5228951255539144 x 100 = -52.29%