The sales team from Microsoft Azure $($Microsoft$\text{'}$s cloud service$)$ contacts you with an alternative offer. In this offer, Techify can advance$-$purchase server and storage capacity for the next year for $$0\mathrm{.}0425$ per streamed hour of content. Furthermore, if the advanced$-$purchase capacity is insufficient to meet demand, Techify can purchase additional "flexible" server capacity on$-$demand as needed for $$0\mathrm{.}09$ per streamed hour.

However, unlike Amazon's and Alphabet's offer, in this new offer, any leftover capacity of the advance$-$purchase order is credited back to Techify for $ s per hour $($i$.$e$.,$ Microsoft "buys back" the streaming hours for $ s per hour$).$ What is the minimum value of $ s for this offer to be better than the ones from Alphabet and Amazon? Note: if