A Fibonacci sequence  is 0,1,1,2,3,5,8, etc. The Fibonacci ratios  are 23.6%, 38.2%, 50%, 61.8%, and 100%. These ratios show the mathematical relationship between the number sequences and are important to traders.

0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233 ... Each number, starting with the third, adheres to the prescribed formula. For example, the seventh number, 8, is preceded by 3 and 5, which add up to 8.