With a daily buying amount of 500 $LEO, let's calculate the total monthly buying amount.
Assuming a 30-day month, your monthly buying amount would be: 500 $LEO/day * 30 days = 15,000 $LEO/month.
Now, to estimate how long it'll take to reach 150,000 staked $LEO, we can divide the required amount by your monthly buying amount: 150,000 $LEO / 15,000 $LEO/month = 10 months.
So, at your current rate of buying 500 $LEO per day, it would take approximately 10 months to accumulate 150,000 $LEO and become an Apex Lion on the INLEO platform.

Please note that this calculation assumes you don't already have any staked $LEO and that you'll continue buying at the same rate.