Merdok Posted January 5, 2011 Share Posted January 5, 2011 OK I'm sure this is a very easy question but I am terrible with mathematics and I can't get my head around this one. I have an ecommerce store and I want to increase all the prices on the site by 6%, is this the correct way to do it? UPDATE shop_prod SET price = price * 0.6 I'm sure the maths is wrong there and that is where I'm falling down I expect. Quote Link to comment Share on other sites More sharing options...
Maq Posted January 5, 2011 Share Posted January 5, 2011 Yes, that is correct but 6% is .06. Quote Link to comment Share on other sites More sharing options...
Merdok Posted January 5, 2011 Author Share Posted January 5, 2011 LOL told you I was terrible at maths, thank you Quote Link to comment Share on other sites More sharing options...
Merdok Posted January 5, 2011 Author Share Posted January 5, 2011 Hmm... I tried this but it didn't seem to work properly UPDATE shop_prod SET price = price * .06 the prices ended up being reduced instead, for example a product that was £407 became around £24 What did I do wrong? Quote Link to comment Share on other sites More sharing options...
Maq Posted January 5, 2011 Share Posted January 5, 2011 Hmm... I tried this but it didn't seem to work properly UPDATE shop_prod SET price = price * .06 the prices ended up being reduced instead, for example a product that was £407 became around £24 What did I do wrong? Sorry, that would set the prices to 6% of their original value. This should be what you want: UPDATE shop_prod SET price = price + (price*.06) Quote Link to comment Share on other sites More sharing options...
BLaZuRE Posted January 6, 2011 Share Posted January 6, 2011 If you need help restoring prices then marking them up: price / 0.06 * 1.06 price / 0.06 restores the orig * 0.06 error *1.06 does the 6 percent markup By the way, using order of operations on the above post, you get (price * .12) since multiplication comes first. Quote Link to comment Share on other sites More sharing options...
Merdok Posted January 6, 2011 Author Share Posted January 6, 2011 Thankfully I backed the DB up first It worked a treat. Thanks guys! Quote Link to comment Share on other sites More sharing options...
Maq Posted January 6, 2011 Share Posted January 6, 2011 Thankfully I backed the DB up first It worked a treat. Thanks guys! Yes, that's always a good idea. I've seen many get burned because they didn't backup, myself included. Quote Link to comment Share on other sites More sharing options...
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