-54.08% is the change from 699 to 321
Calculation steps:
[( 321 - 699 ) ÷ 699] x 100 = -54.08%
Formula
Percentage change = [(321 - 699) / 699] x 100
Subtract the new number by the original number
321 - 699 = -378
-378 ÷ 699 = -0.5407725321888412
-0.5407725321888412 x 100 = -54.08%