percent

by this_mong

HTML

원래가격 <input type="Number" id="price" value="0">원<br>
퍼센트 <input type="Number" id="percent" value="0">%<br>
<button type="submit" onclick="result();">결과</button>
<div id="txt"></div>

JavaScript

function result(){
	var p = document.querySelector("#price").value;
	var p2 = document.querySelector("#percent").value;
	var price2 = Number(p);
	var percent2 = Number(p2);
	var resultTxt = price2 * (percent2 / 100);
	document.querySelector("#txt").innerHTML="가격"+price2+"원의 "+percent2+"%는 "+resultTxt+"입니다.";
};