Answer: 8.6%
Explanation:
Based on the scenario that is given in the question, the formula for calculating Value-added ratio is:
= Value added time/Total resolution time
where,
Value added time = First contact + Service scheduling + Service
=0.25 + 0.50 + 1.50
= 2.25 hrs.
Value-added ratio will now be:
= 2.25 / 26.25
= 0.086
= 8.6%