I have a question about daily returns from SHA-256 and Scrypt mining with HashFlare.
Below is a table showing daily profit/loss for both mining types. My question: Why is profit/loss %age for both mining types the same?

Are you comparing both ..?? because both are running on different platform ..so you can't compare both sir
That's my point - don't you think it's strange that the
change % is equal even though the results are from
2 different platforms?
yes there is quite little bit different in income generation point of view ..as both have differ option to mining coin and different coins they can mine ..so as per need people buy it