A question about equity

[cartman]

Am I correct that the "cost" of betting the turn when he doesn't fold is the difference in our respective equities multiplied by the amount that I put in on the turn?

In this case (80%-20%)*(1BB) = .6 BB LOSS when he calls and (80%-20%)*(2BB) = 1.2 BB LOSS when he checkraises and I call.

Thanks,
Cartman