Rate Modifiers

EXP

• Happy Hour (under 110lvl) +85 000%
• Happy Hour (110lvl+) +10 000%
• Armor fixes (both) +1500% max
• PET Basic V1 +500%
• PET Basic V2 +1500%
• PET Basic V3 +2500%
• PET PVE Enhancement +1000%
• Picture of Lover (standard) +30%
• Chrome Picture of Lover (1h/5h) +1000%
• Chrome Picture of Lover (90d) +1000%
• Chrome Inspiration +1500%
• Time of Growth (Leader item) +2000%
• Victorious Mothership Happy Hour +500%
• Friends +0,5%/one friend (+25% max)
• Number of members in formation +3%/2, +6%/3, +9%/4, +15%/5, +30%/6

Side note: Level range to get share EXP is 14 Levels difference.

Drop

• Happy Hour +100%
• Crystals Happy Hour +100%
• Armor fixes (both) +100% max
• Event Armor (Sleigh) +100%
• PET PvE Enhancement +50%
• Item Seeker (standard) +30%
• Chrome Item Seeker (1h/5h) +100%
• Chrome Item Seeker (90d) +100%
• Chrome Inspiration +100%
• Time of Growth (Leader item) +50%
• Victorious Mothership Happy Hour +50%
• Number of members in formation +3%/2, +6%/3, +9%/4, +15%/5, +30%/6

SPI

• Happy Hour +300%
• Crystals Happy Hour +1000%
• Lucky Coin (standard) +50%
• Chrome Lucky Coin (1h/5h) + 400%
• Chrome Lucky Coin (90d) +400%
• Influence buff shop +200%
• Victorious Mothership Happy Hour +100%

War Points

• Happy Hour +600%
• Crystals Happy Hour +300%
• PET Basic V3 +100%
• PET WP Enhancement +100%
• Mark +100%
• Outpost buff (Akron) +200%
• Influence buff shop +100%

Yes, the effects from 1h/5h charm do stack with 90 day one.

See also: Crystals, Leadership