Tool or calculator for percentage formula calculations?

Hello, Is there a tool/website/calculator to help with percentage formula calculations? I have a percentage formula and I am playing the amount of one of the i…

1. Food R&D Emeritus reply

   @sf23 Look thats pretty elementary thing to do and not have to wait for someone to assist you.. The web abounds in calculator tools .. if you just tried websearch..using your keyw…

2. Chelsea Tyus reply

   ESHA Genesis R&D, or excel make the formula % a value and the unit of measure (lbs/gallons etc) depend on the total.