How is the Daily and up to 24% Returns Calculated on the USDT Staking?

Depending on the amount of USDT Staking subscription the returns start at 12% per year and up to 24% per year as per below details:

USDT  Return:
Users will earn the following monthly rewards paid out daily in USDT. 

$50 purchase amount qualifies for 12% Returns over 12 months (approx. 1% monthly paid daily)
$100 purchase amount qualifies for 12% Returns over 12 months (approx. 1% monthly paid daily)
$500 purchase amount qualifies for 12% Returns over 12 months (approx. 1% monthly paid daily)
$1,000 purchase amount qualifies for 12% Returns over 12 months (approx. 1% monthly paid daily)
$2,000 purchase amount qualifies for 12% Returns over 12 months (approx. 1% monthly paid daily)
$5,000 purchase amount qualifies for 24% Returns over 12 months (approx.  2% monthly paid daily)
$7,000 purchase amount qualifies for 24% Returns over 12 months (approx.  2% monthly paid daily)
$10,000 purchase amount qualifies for 24% Returns over 12 months (approx.  2% monthly paid daily)
$15,000 purchase amount qualifies for 24% Returns over 12 months (approx. 2% monthly paid daily)
$20,000 purchase amount qualifies for 24% Returns over 12 months (approx. 2% monthly paid daily)

The higher the purchase amount, the greater the benefit and return rate.