-54.92% is the change from 712 to 321
Calculation steps:
[( 321 - 712 ) ÷ 712] x 100 = -54.92%
Formula
Percentage change = [(321 - 712) / 712] x 100
Subtract the new number by the original number
321 - 712 = -391
-391 ÷ 712 = -0.5491573033707865
-0.5491573033707865 x 100 = -54.92%