-97.08% is the change from 718 to 21
Calculation steps:
[( 21 - 718 ) ÷ 718] x 100 = -97.08%
Formula
Percentage change = [(21 - 718) / 718] x 100
Subtract the new number by the original number
21 - 718 = -697
-697 ÷ 718 = -0.9707520891364902
-0.9707520891364902 x 100 = -97.08%