-54.66% is the change from 708 to 321
Calculation steps:
[( 321 - 708 ) ÷ 708] x 100 = -54.66%
Formula
Percentage change = [(321 - 708) / 708] x 100
Subtract the new number by the original number
321 - 708 = -387
-387 ÷ 708 = -0.5466101694915254
-0.5466101694915254 x 100 = -54.66%