Percentage rank where lower is better

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Let's say I am measuring a metric where the goal is to be $3$ or lower. The actual value is $4$. I want to be at least $95$% within the goal.

If the actual value is for e.g. $2$, then I can say I am $100$% within the goal, as it is below $3$. But what would be the best way to display an actual value of $4$ as a percentage in relation to $3$?

Currently I am doing $\frac{3}{4}$, which is backwards compared to what you would normally do, but the value it results in makes more sense ($75$%).

$\frac{4}{3}$ results in $133$%, which you could interpret as $33$% over the goal i.e. you are actually at $77$%, but this method isn't scalable; if we went with a larger value like $15$, the result would be $500$%, meaning $400$% over the goal, which seems exaggerated.