Yeah...........Just multiply each one of the initial figures by whatever percent you want to end up with.
40% equals .40x where x is the initial figure.
Personally I'd rather use BAS Bloom with the Roots Organic Original. Still gotta get creative with top dressing with that many plants in a net. I've never done it, so I have no input on it.
I'd sure as hell have to integrate compost teas with Boost combined with seed sprout tea(SST).
Brew the compost tea normally, add the Boost for no more than 4 additional hours. Combine the compost and SST at the time of application, no need or useful to "brew" the SST.