When answering this question, emphasize your systematic approach to estimating and the tools or methodologies you use to ensure accuracy. Mention any software, historical data, or industry standards you rely on. Provide examples of past projects where your estimates were particularly accurate and explain the steps you took to achieve that accuracy. For instance, you might say:
"I ensure the accuracy of my estimates by using a combination of industry-standard software and historical data from previous projects. I start by thoroughly reviewing the project plans and specifications to understand the scope of work. Then, I use software like [Name of Software] to input all relevant data, which helps in generating a detailed estimate. I also cross-reference my estimates with historical data and consult with subcontractors and suppliers to get the most current pricing information. For example, on a recent project, my estimate was within 2% of the actual cost, which I attribute to my detailed review process and the use of reliable data sources."
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