Formula Giving Error at Output When Missing Data

I am using formula =(B1-A1)/A1 to calculate percentage difference between the numbers in two cells however the output or total cell the formula is attached to displays #DIV/0! I tried the troubleshooting I’ve found so far but haven’t gotten anything to work without it messing up the calculated difference.

I just want the cell to display blank if no data is present instead of this error.

Would love some assistance!

Thank you