On $16$ March, QMI signed a contract with Stapleton Company for a total $$4$ million. Stapleton was building a new addition to its manufacturing facility and has decided to install an energy efficient modular building to reduce its annual operating electricity costs. The contract price includes the CSH$-$V$2$ modular homes, installation, a two$-$year warranty and a five$-$year maintenance agreement that starts as soon as installation is completed. Separate selling prices for the modular homes and installation and a one$-$year maintenance contract are $$3,200,000$ for the modular homes and installation and $$300,000$ each year for the maintenance contract. Generally, the modular homes can be installed within four months of the date the contract is signed. A nonrefundable deposit of $10\%$ of the contract is due on the signing of the contract. Another $75\%$ is due on delivery and installation. The remaining $15\%$ is due six months or later after the installation date when all deficiencies have been resolved. Delivery and installation was completed on $31$ August $2025.$ The warranty is for assurance that the product will work within its specifications. QMI estimates that based on past experience, warranty costs will be approximately $$150,000$ on this size of contract. The company has recognized $$3\mathrm{.}3$ million in revenue for $2025$

question: identify error in revenue recognition and correct it$.$ use the cpa handbook to explain your though process