Задача: хистограма

function hystogram(args) {
    let n = Number(args[0]);
    let under200 = 0;
    let under400 = 0;
    let under600 = 0;
    let under800 = 0;
    let under1000 = 0;
    let currentNumber = Number.NEGATIVE_INFINITY;
for(i = 1; i < args.length; i++){
    currentNumber = Number(args[i]);
    if(currentNumber < 200){
        under200++;
    }else if(currentNumber >= 200 && currentNumber < 400) {
        under400++;
    }else if(currentNumber >= 400 && currentNumber< 600){
        under600++;
    }else if(currentNumber >= 600 && currentNumber < 800) {
        under800++;
    }else if(currentNumber >= 800){
        under1000++;
    }
}
console.log(((under200 / n) * 100).toFixed(2) + "%");
console.log(((under400 / n) * 100).toFixed(2) + "%");
console.log(((under600 / n) * 100).toFixed(2) + "%");
console.log(((under800 / n) * 100).toFixed(2) + "%");
console.log(((under1000 / n) * 100).toFixed(2) + "%");
}
hystogram([9, 367, 99, 200, 799, 999, 333, 555, 111, 9]);