JSFiddle - React, Tailwind, and code Playground
JavaScript
var array = [75874.49451, 148446.7529, 212880.7496, 297841.5022, 338012.8016, 379193.0525, 415667.8911, 447424.9643, 476233.4558, 493878.0509];
var prob = 0;
for (var i = 0; i < array.length; i++) {
prob = array[i] / array[array.length-1];
console.log(prob);
}