Why does it show value 5150 and not 155? : <p>So im quite new to javascript and i tried making something simple as entering a value and add 150 to it but it wont show number + 150?
Pictures below</p>

<p><a href="https://i.stack.imgur.com/XjPJr.png" rel="nofollow noreferrer">Code</a></p>

<p><a href="https://i.stack.imgur.com/IcxER.png" rel="nofollow noreferrer">Output</a></p>
