Trade Strategies auto changing

I set my trade as

Follow Product Quality Strategy
When the products are put on the market, trail quality by: 200%
For each month that the products are not sold, decrease the price by: 10

but the next month they auto change to 110 and lower by 10

my Automation setting is 150 lower by 10

is this because i am a free member

follow changes in produced quality is checked yes

If you are new to the game, then for the first two weeks, 14 days, you will have to use the trade settings the game provides. This is to stop you screwing up badly initially, as setting your trail quality by 200% would do for example.

Its nothing to do with being a premium player or not.

Free members always buy and sell at best price, regardless of what the settings are. To test that, I tried some ridiculous settings, and virtually never had surpluses or shortages because the transactions ignored my settings.

Best price is a good strategy.