Synergies not working correctly

Deadbyrd9

I’m using a team that gives 18% attack to the team from synergies. Star lord has a base attack of 1705 at rank 4. 1705 * 1.18 = 2011. The attack on my star lord is only 1986. I’m only seeing a 16.5% increase. I’ve tested a few other teams with 18% attack and never saw 2011 as my attack on star lord. Could you look into this? It appears only a select few combinations of 18% give the full 18% increase. Here is a pic of my team and attack on star lord after synergies are added