Answer:
7.5%
Step-by-step explanation:
The general formula for the percent change of an amount is:
[tex]\frac{original-new}{original}x100[/tex]
Since the original amount is 1,513 visitors and the new amount for March is only 1,400 visitors:
[tex]\frac{(1,512-1,400)}{1,513}X100=7.5percent[/tex]