Glossary
Final
Its own multiplier, applied once after the increased and more bonuses are done. It never joins another bonus, so it is always the full amount at every level. The Server Boost's x1.2 is the final tier.
Stat stacking: bonuses apply to a stat's base value. Additive bonuses are 'increased' and add together against the base. Multipliers are 'more' and apply on top of the others. Bonus output is 'generate'.