Have a customer that i have not raised peices for in 3 years. I keep 6-10 electricians busy there year round. Profit margin has dropped this year so I am increasing prices. Since its been three years I am increasing by 3% per year. Total of 9%. My accountant says I should raise prices each year because costs increase each year. What do you guys think? This is the first year my profits have dropped, and its by about 6%.