-4.18% is the change from 718 to 688
Calculation steps:
[( 688 - 718 ) ÷ 718] x 100 = -4.18%
Formula
Percentage change = [(688 - 718) / 718] x 100
Subtract the new number by the original number
688 - 718 = -30
-30 ÷ 718 = -0.04178272980501393
-0.04178272980501393 x 100 = -4.18%