-30.08% is the change from 718 to 502
Calculation steps:
[( 502 - 718 ) ÷ 718] x 100 = -30.08%
Formula
Percentage change = [(502 - 718) / 718] x 100
Subtract the new number by the original number
502 - 718 = -216
-216 ÷ 718 = -0.3008356545961003
-0.3008356545961003 x 100 = -30.08%