//Calculate the average rate(%) of profit

function averageRateOfProfit(profits, invest ){

let totalProfit = 0;

for( let i = 0; i < profits.length; i++){

const index = i ;

const profit = profits[index];

totalProfit = totalProfit + profit;

}

const averageProfit = totalProfit / profits.length;

const averageInvest = invest / 2;

const averageRateOfProfit = (averageProfit / averageInvest) * 100;

const outputMessage = "Average Rate of profit is "+ averageRateOfProfit.toFixed(1)+"%";

return outputMessage;

}

const profitsList = [60000, 70000, 75000, 80000, 85000];

const totalInvest = 500000;

const profitRate = averageRateOfProfit(profitsList, totalInvest );

console.log(profitRate);