I've really come to appreciate this calculator from llau.
The obvious care and effort put into it's development is impressive.
I don't know if llau is still active on the forum but I offer a big thank you for this excel spreadsheet and find it really helpful.
I've edited it to work acurately when set to it's English format and attached for others.
I urge members to take it for a spin.
Changes I've made to it...
Fixed processing time to be accurate.
Fixed calculation for "silver type" to work when set to the English format
No longer works in Spanish
Translated to comments/explanations to English.
Added calculation for gelatin powder using mg.
No longer works in Spanish
Minor content fitting for text in cells