Depending on one's type rating, available work for freelancers is definitely more scarce than last year. Commercial reality is that all the operators try to "squeeze" the rates, and even re-negotiate the rate after the flying has been completed (as per Gulfstream's post).
As has been pointed out, training/medicals/visas/licences aren't getting any cheaper, so even if you do cut your last year's rate by, say, 10% to reflect the current market, you are doing no-one, including yourself, any favours by working for less than the suggested daily rates.
Frankly anything less than £500 per day (or £3,000 per week)for a Hawker Captain, is an insult to a professional who is expected to maintain his licence at his own cost.
What is particularly galling is when colleagues already on full employment contracts (i.e. no personal costs) , then undercut the freelance rates for a bit of extra "pocket money", thus taking bread from the poor!