Every dietary supplement sold in the US carries a Supplement Facts panel, and it's worth knowing how to actually read one.
Everything on the panel is calculated per serving, not per container. Check the serving size at the top before comparing any numbers between products.
Some ingredients are listed individually with their own milligram amount. Others sit inside a proprietary blend, where only the blend's total weight is disclosed, not each ingredient's individual share.
The %DV column tells you how much of an established daily requirement one serving provides — but it only exists for nutrients with an established requirement, not for most botanical extracts.
Read your bottle's actual panel rather than any online description, including this one. It's the authoritative source for exactly what you're taking.