phosphoric acid calculations question

Hi, I am trying to find a phosphoric acid dilution calculator that was mentioned in universal antidote series but it goes to telegram and my telegram is not working .  could someone please post a link to another calculator?  Are there any food grade phosphoric acid brands that you prefer?    I know charlotte has done calculations for phosphoric acid if you can point me to it appreciate it. ...also I only can find phosphoric acid 85%  so wondering what are calculations to dilute this....thanks

The forum software won't accept the spreadsheet file type. I hope you can get Telegram working again. 

Tell me the % PA and quantity you want to make and I will calculate the numbers for you. 

Hello CL02 thanks for the reply. I will be using 75%

wrote:

wrote:

Hello CL02 thanks for the reply. I will be using 75% 

The calculation was based upon using 75% PA diluted to 12% with a quantity of 120ml.