Use tab to move to the next field. You need to find out what percent is 7 out of 300. You can then increase or decrease the the decimical place as needed.
Find Percent of Two numbers example.
Enter 1100 in first box and enter 100 in the second box. 0023100 233 Answer. Convert Percentage to Decimal Divide the percentage added to the original by 100. Multiply result by 100.