07. Football League

function footballLeague(input) {
    let stadiumCapacity = Number(input[0]);
    let footballFans = Number(input[1]);
    let sectorA = 0;
    let sectorB = 0;
    let sectorV = 0;
    let sectorG = 0;

    for (let i = 2; i < footballFans + 2; i++){
        if (input[i] === "A"){
            sectorA++;
        } else if (input[i] === "B"){
            sectorB++;
        } else if (input[i] === "V"){
            sectorV++;
        } else if (input[i] === "G"){
            sectorG++;
        }
    }

    console.log(`${(sectorA / footballFans * 100).toFixed(2)}%`);
    console.log(`${(sectorB / footballFans * 100).toFixed(2)}%`);
    console.log(`${(sectorV / footballFans * 100).toFixed(2)}%`);
    console.log(`${(sectorG / footballFans * 100).toFixed(2)}%`);
    console.log(`${(footballFans / stadiumCapacity * 100).toFixed(2)}%`);
}

Фундаменталс решение:

function footballLeague(input) {
    let stadiumCapacity = Number(input.shift());
    let footballFans = Number(input.shift());

    let sectors = { 'A': 0, 'B': 0, 'V': 0, 'G': 0 };

    input.forEach(s => { sectors[s]++; });

    for (const s in sectors) {
        console.log(`${(sectors[s] / footballFans * 100).toFixed(2)}%`);
    }
    console.log(`${(footballFans / stadiumCapacity * 100).toFixed(2)}%`);
}