-30.36% is the change from 718 to 500
Calculation steps:
[( 500 - 718 ) ÷ 718] x 100 = -30.36%
Formula
Percentage change = [(500 - 718) / 718] x 100
Subtract the new number by the original number
500 - 718 = -218
-218 ÷ 718 = -0.30362116991643456
-0.30362116991643456 x 100 = -30.36%