I asked afterwards whether the $10.4m to $15.8m orders target for 2018-19 included the orders unfilled from last year and was told that it did.
The 70-75% realisation figure is an historical average I gather, so whether it holds for this year would partly depend on when orders were obtained during the year.
I agree you can add other revenue as well.
Really these estimates are very rough given the company sales growth is so recent and rapid and the product mix is changing. We probably need to wait for further updates to see how the business is travelling and the likely revenue this year.