Please provide a spreadsheet or table of all items purchased and include a columns for price paid (in GST), price (ex GST), GST. Please also include the totals of cost for all items you are submitting for reimbursement.
Below is an example:
You can use this gov tool to help you calculate https://moneysmart.gov.au/income-tax/gst-calculator
Please compile all receipts into one document (excel preferred).