-54.27% is the change from 702 to 321
Calculation steps:
[( 321 - 702 ) ÷ 702] x 100 = -54.27%
Formula
Percentage change = [(321 - 702) / 702] x 100
Subtract the new number by the original number
321 - 702 = -381
-381 ÷ 702 = -0.5427350427350427
-0.5427350427350427 x 100 = -54.27%