Data Entry Order Spreadsheet

I am building Food Stand Orders Record Table, which I would like to automate and reduce the data entry process as much as possible so that it will take as long to enter all 400 orders into the spreadsheet and mitigate errors and calculate totals. I am looking for ideas as to how to make this easier to update. Also, I am not set on the concept of the spreadsheet, if there is a better way to capture this data.

Below is a list of columns in my Order Record Spreadsheet: My spreadsheet start on A5. The Header row is A5:N5

No. = record input number
Order # = The number of the order taken (i.e. 35306 – 11, 35306 – 12)
Item = The Items sold from each order #
Item Category = Was the item sold a special order or standard order
Date = The date the items and orders were sold
Time = The time the order was taken
Quantity = how many of the item was sold for that order #
Order Taker = record of who (order taker) took the order #
Item Price = What is the price of one unit x the quantity of the item sold
Total Order = What is the total cost of each item price associated with the same order #
Cash Received = We only accept cash, what was the cash tendered with the order#
Change = What is the change amount given to back to the customer associated with the order #
Donation Received = Is the change amount, When customer associated with order# did not accept the Change.
Notes = special notes related to the order#