Farming Fortune

is a stat known as Double Farming Drop Chance that affects a player's chance to get more crops.

Crop Chance Modifiers

 * Farming Level - +4% chance per level - up to 240% with farming 60
 * Harvesting Enchantment - +12.5% per enchantment level - up to 62.5% with Harvesting 5
 * Mathematical Hoe Blueprint - +10% with tier 1, +25% with tier 2, +50% with tier 3
 * Blessed Reforge - Gives 5/7/9/13/16/20% drop chance depending on the rarity
 * Legendary Elephant Pet - +1.8% with each level - up to 180% with level 100
 * Extra Farming Drops Perk - +2% with each level - up to 30% with 15 tiers
 * Turbo Books - 5% with each tier - up to 25% with tier 5
 * Cultivating Books - 1% with each tier - up to 10% with tier 10
 * Logarithmic Counter Bonus (Newton Hoes T2) - From a counter of 10000 it increases by 16% at each added digit. (at 1b this would be 96%)
 * Collection Analysis Bonus (Newton Hoes T3) - From a collection of 10000 it increases by 8% at each added digit. (at 1b this would be 48%)

Scaling
Crop chances are additive, meaning that to calculate your crop chance, add the percentage of every bonus that you have. For example, if someone had a farming level of 20, they would have a 80% chance. The first digit in someone's crop chance is how many drops they are guaranteed to get. The following digits are the chance of getting 1 more drop. For example, if someone had a crop chance of 260%, they would get 3x drops every time and a 60% chance to get 4x drops.

Theoretical Maximum
The theoretical maximum can be achieved using the following. Farming Level 60 (240%), Harvesting 5 (62.5%), Diamond Newton's Hoe (50%), Blessed Reforge on a Mythic Hoe (20%), Extra Farming Drops Perk Maxed (30%), Level 100 Legendary Elephant Pet's Trunk Efficiency Ability (180%), Turbo Book 5 (25%), Cultivating Book 5 (10%), Logarithmic Counter (96%) and Collection Analysis (48%) assuming 1 billion on both the counter and the collection. The sum and the maximum crop chances in total is 761.5% or guaranteed 7x bonus drops and 61.5% chance of 8x bonus crop drops.