While 1.3x is the upper end Svarog's first skill, fair enough (1.15 would be more on the average side).Since you started with 7.3, we could just keep to that, no? 7.3 * 3.2/2.8 = 8.34.
As a reminder, off-element Light Nike is 4 * 4/2.8 = 5.71, and as such, significantly lower than on-element Svarog. I'm not surprised.
So, next question. What about the rest of the team?