can somebody tell me where i'm going wrong I'm just trying to do...

can somebody tell me where i'm going wrong I'm just trying to do some simple maths here and want to know if I've gone wrong anywhere.For these calculations I am using direct costs as (e) other working capital less capital expenditure etc

Q 1
Sales 2.104m
staff costs 393k
direct costs 1040k

so general ratios staff costs 18.3% of revenue, direct costs 49.4% of revenue

Q2
Sales 3.1m
staff costs 468k
direct costs 1390k

so general ratios staff costs 15% of revenue, direct costs 44.8% of revenue

Q3
Sales 5.145m
staff costs 562k
direct costs 1698k

so general ratios staff costs 10.9% of revenue, direct costs 33% of revenue

I could try to cacluate some other ratios and guess the depreciation and investment in capital investment etc, but from what I can see the last quarter was a great one. Top line revenue growth is there, its being earned in a cost effective way (i.e. the synergies are showing through) and everything looks solid.

All we need now is another suitable acquisition or the expansion plans to kick in based on a big customer showing up.

Have I got anything wrong here? I'm not generally that bright so let me know where I've gone wrong.