In the Michaelmas Quarter my man had 78 Ds, 82 Ns and 62 Ts. Several men have half and three quarter Ds and Ns.
In the Christmas Quarter my man has 78 Ds, 77 Ns and 63 Ts. One man has 78 Ds, 78 1/2 Ns and 129 Ts.
In both the Michaelmas and Christmas Quarters the men all received different wages, so the rates must have differed according to the number of Ds, Ns and Ts they worked.
We don't seem to have agreed what units the numbers represent. Accepting they are quarterly, and there are about 91 days in a quarter (78 days would be 13 6-day weeks), they appear to represent 'days' which qualify for three rates of pay. The 129 Ts present a problem, unless that man had something held over from an earlier quarter, or was doing additional work for another?
(
later) I've tried to make sense of the five records in the OP's earlier post, but can't draw any solid conclusions except that these quarterly amounts must be 'bonuses' or allowances or expenses of some sort, as (a) I don't think anyone's full pay then was as infrequent as that and (b) £40 a year is not a professional rate of pay.
The first two records shown suggest that one D was worth the same as one N, somewhere about a shilling. Comparing those with the last record suggests that one T was worth a lot less, about four pence; but using these figures in the other records doesn't add up, so the five men must have been paid different rates. I can only guess that the men took on extra duties such as supervision or training, and claimed at each quarter-end.
One afterthought - the British Navy was pretty busy about this time, after the Battle of the Nile in 1798 (I think), and this dockyard would have been too. Is this some sort of overtime record?