-55.29% is the change from 718 to 321
Calculation steps:
[( 321 - 718 ) ÷ 718] x 100 = -55.29%
Formula
Percentage change = [(321 - 718) / 718] x 100
Subtract the new number by the original number
321 - 718 = -397
-397 ÷ 718 = -0.552924791086351
-0.552924791086351 x 100 = -55.29%