A store employee notices that balance beams that cost his store $650 are being sold for $936. What percentage is the mark-up?
The mark-up can be calculated using the formula:
Mark-up = (Selling Price - Cost Price) / Cost Price * 100%
Mark-up = ($936 - $650) / $650 * 100%
Mark-up = $286 / $650 * 100%
Mark-up = 0.4392 * 100%
Mark-up = 43.92%
Therefore, the mark-up percentage on the balance beams is 43.92%.