Sun Mirror Ltd manufactures a single product. The product sells for $40. The variable cost per unit is $16. Sun Mirror incurs monthly fixed costs of $680,000. Sun Mirror is considering changes to its production procedures. If the changes are made, total variable costs per unit will be $14 and total fixed costs will be $650,000 per month. The selling price will remain at $40. If the changes are made, the number of units required to break even will be?