Helps on calculating grade?

<p>I have my chemistry final tomorrow and I need to know what score I need to get in order to keep at least an 80% in the class. I would calculate it myself but my calculator is broken.</p>

<p>My total is an 83.06% and the final is worth either 15 or 20%</p>

<p>Please help me out, I really appreciate it.</p>

<p>From common sense....get a 79 or above</p>

<p>Amazing</a> Grade Calculator</p>

<p>If it's 15%: 63% on final.
If it's 20%: 68% on final.</p>

<p>THANK YOU romanigypseyeyes!!</p>

<p>What a great calculator.</p>

<p>Lol, it's my lifeline around finals time :].</p>

<p>whoa, if only I had seen that three weeks ago.</p>