In response to this post: https://www.bungie.net/en/Forums/Post/258539873?page=0&sort=0&showBanned=0&path=0 Are you unlucky or not? How to actually calculate drop chance of eyes of tomorrow If the drop rate increases by 1% per week as drop protection and you run once per week: 1-(0.95*0.94*0.93...) 1st week = 5.0% 2nd = 10.7% 3rd = 17% 4th = 23.6% 5th = 30.5% 6th = 37.4% 7th = 44.3% 8th = 50.1% 9th = 57.4% 10th = 63.3% 11th = 68.9% 12th = 73.8% 13th = 78.3% 14th = 82.2% 15th = 85.6% 16th = 88.5% 17th = 90.9% 16th = 86.5% 17th week = 90.9% If you run 3 times per week with the first run increasing drop chance by 1%: 1-(0.95^3 * 0.94^3 * 0.93^3...) 1st week, 3rd run = 14.3% 2nd = 28.8% 3rd = 42.7% 4th = 55.4% 5th = 66.4% 6th = 75.5% 7th = 82.7% 8th = 88.2% 9th = 92.2% 10th = 95.1% 11th = 97.0% 12th = 98.1% 13th = 98.9% 14th = 99.4% 15th = 99.65% 16th = 99.82% 17th = 99.91%