On weeknights an Uber driver can expect to earn $$110$ driving a six$-$lyour shift. Surge pricing on Saturday nights means that Uber drivers can expect to earn $$140$ driving a six$-$nour shift. On weeknights, there are $200$ drivers on the road, which rises to $300$ on Saturdays. Calculate the price elasticity of supply of Uber drivers using the midpoint formula.

$1\mathrm{.}67$

$24\%$

$0\mathrm{.}825$

$40\%$