Growing Hordes math is wrong?

Just ran two maps with growing hordes allocated, 4x polished scarabs
Growing Hordes reads:
Polished Scarabs instead grant 10% increased pack size
However, in the map the listed bonus was only 25% from the 4 scarabs (52->77 and 55->80)
Is this a display bug or is growing hordes actaully giving way less pack size than it claims?

EDIT: Miscounted grand design, looks like it was giving 28% from 4 polished scarabs, probably just tooltip wrong rather than math error
Testing seems to give:
Rusted 5%
Polish 7%
Gilded 10%
Winged Not gonna test lol
Rather than the tooltip values of:
Rusted 5%
Polish 10%
Gilded 15%
Winged 20%

Another thing is that the Growing Hordes Packsize does not get increased by the "increased effect of modifiers on your map" Nodes.
Not sure if thats intentional or a Bug thou.

"

Odelbauer wrote:

Another thing is that the Growing Hordes Packsize does not get increased by the "increased effect of modifiers on your map" Nodes.
Not sure if thats intentional or a Bug thou.

thats because this bonus is in the atlas tree, not on the map itself