The lower and upper specifications for a software upgrade are $78$ minutes and $81$ minutes. Estimate the percentage of process output that can be expected to fall within the specifications.

Note: Round your answer to $1$ decimal place.

SAMPLE$12345679\mathrm{.}278\mathrm{.}479\mathrm{.}678\mathrm{.}980\mathrm{.}579\mathrm{.}781\mathrm{.}978\mathrm{.}779\mathrm{.}679\mathrm{.}879\mathrm{.}680\mathrm{.}680\mathrm{.}081\mathrm{.}078\mathrm{.}979\mathrm{.}780\mathrm{.}479\mathrm{.}178\mathrm{.}480\mathrm{.}480\mathrm{.}379\mathrm{.}478\mathrm{.}580\mathrm{.}081\mathrm{.}080\mathrm{.}180\mathrm{.}880\mathrm{.}678\mathrm{.}881\mathrm{.}1$

The lower and upper specifications for a software upgrade are $78$ minutes and $81$ minutes. Estimate the percentage of process output that can be expected to fall within the specifications.

Note: Round your answer to $1$ decimal place.

Expected process output