That's assuming that you don't convert the SBD to Steem, and that the price of SBD increases more favorably to the price of Steem (i.e. the exchange rate between Steem & SBD decreases compared to the exchange rate existing when your payout was received).
EDIT: I saw a flaw in my original calculation and updated it below. You're correct.
Any place where there is no formula noted below a given cell is a static number.
The # of SBD per Steem in the first picture is an actual rate on the internal Steemit market. The same value on the second picture is the actual value of Steem Price divided by SBD Price, plus approximately $0.01 to account for "market fees".