[dice]

So, I am sitting here doing something else, and it occurs to
me that we can go directly from pints to tablespoons and
skip a step in the description above (32 tablespoons per pint,
by the way). This can be reduced to a formula:

((pints per acre) x (tablespoons per pint)) / (gallons per acre) =
(tablespoons of liquid concentrate per gallon)

((actual square feet) / (square feet per acre)) x (gallons per acre)
= (how many gallons of mixed solution to use)

To use dry concentrate with a "pounds per acre" instruction
(or kilos per acre), first you weigh a tablespoon of the dry
concentrate.

(((pounds per acre) x (ounces per pound)) /
(ounces per tablespoon)) / (gallons per acre) =
(tablespoons of dry concentrate per gallon of water)

(To use kilos and grams, get the weight in grams of a
tablespoon of the dry concentrate, then subsitute kilos
for pounds and grams for ounces in the formula above.)

Once you have tablespoons of dry concentrate per gallon,
use the same area formula to decide how many gallons
to use:

((actual square feet) / (square feet per acre)) x (gallons per acre)
= (how many gallons of mixed solution to use)