In provinces where there is PST (Provincial Sales Tax) as well and you have to charge both GST and PST, you calculate the GST on the price of the goods or service before PST has been applied. The provinces of Manitoba, Saskatchewan and British Columbia have PST: 1  in British Columbia, 7%.ST @ 15% $6.00. Total Price $45.99. For more on invoicing and applying taxes, see How to Invoice and An Invoice Sample with HST. Both of these articles explain exactly what information has to be on an invoice as well as providing invoice templates you can use.
NEXT STEP. Find out how much your project will cost. Provide a few details about your project and receive competitive quotes from local pros. The average national cost of building a foundation is $7,775, with most homeowners spending between $4,239 and $11,710.This data is based on actual project costs as reported by HomeAdvisor members. Any structure, whether a house, a garage, or workshop, is only as strong as its foundation.he average national cost of building a foundation is $7,775, with most homeowners spending between $4,239 and $11,710. This data is based on actual project costs as reported by HomeAdvisor members.
Add the footer and foundation cubic feet together to get 2,600 cubic feet of concrete necessary to pour the footer and foundation wall. Now you will need to convert the cubic feet into cubic yards in order to estimate the number of cubic yards of concrete necessary for the job.Do this by dividing the total feet by 27 (2,600 cubic feet divided by 27 equals 96 cubic yards of concrete to pour the foundation).The price of concrete ranges from 80 to 100 dollars per yard, as of 2011. Call you local concrete provider to get a per yard price.o this by dividing the total feet by 27 (2,600 cubic feet divided by 27 equals 96 cubic yards of concrete to pour the foundation). The price of concrete ranges from 80 to 100 dollars per yard, as of 2011. Call you local concrete provider to get a per yard price.