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We need to explain $95\mathrm{th}$ percentile in this setting.

Some internet service providers (ISPs) bill businesses based on the amount of bandwidth they consume every month.
As a result, we need to figure out what the $95\mathrm{th}$ percentile means in this situation.
This means that the $95\mathrm{th}$percentile bandwidth is the bandwidth that the company consumes less than $95\%$ of the time.
$95$percent of the time, the company utilises bandwidth that is less than the $95\mathrm{th}$ percentile.

We need to find z-score for the given data.

The z-score for a usage total that is in the $95\mathrm{th}$percentile can be calculated.
And the bandwidth's z-score will be $98\mathrm{th}$percentile, because bandwidth for the $98\mathrm{th}$percentile will be higher than for the $95\mathrm{th}$percentile, and higher bandwidth will cost more.
As a result, the outcome.