Example Calculation:

Assume gross profit for sales of LPC product in 2019 totals $500,000 USD.
2020 gross profit is $550,000 USD
2021 gross profit is $750,000 USD

Donation requirement is ¼ cent per dollar of gross profit annually.

$500,000 × .0025 = $1,250 USD
$550,000 × .0025 = $1,375 USD
$750,000 × .0025 = $1,875 USD