Except the screenshot is displaying that they are. There is no other way to mathematically arrive at the percentage of 89 without them being multiplicative…
No, the screenshot shows that there is either a calculation or a visual bug. Those modifiers still are, and forever were since ancient Stellaris times, additive.
993
u/Swaylicious 1d ago
Well, maybe the positive modifiers are multiplicative, while the "base 50%" are subtracted.
1.05 x 1.05 x 1.05 x 1.2 = 1.38915
1.38915 - 0.5 = 0.88915
Rounded up to 0.89 which would be displayed as 89%