In the February 2024 Communications article titled, "Energy and Emissions of Machine Learning on Smartphones vs. the Cloud," the authors found and corrected two arithmetic errors after it was printed. The corrections affected numerous derived values in the tables and the discussion, but the magnitude of the changes was not sufficient to affect the paper's conclusions. Therefore, ACM published a Corrected Version of Record (CVoR) on January 25, 2024. For reference purposes, the VoR may still be accessed via the Supplemental Material section in the ACM Digital Library. The following is a detailed explanation from the authors on how the errors occurred and the ramifications on their findings. Our article "Energy and Emissions of Machine Learning on Smartphones vs. the Cloud" on page 86 had two arithmetic errors that we caught shortly before the online publication but too late for the paper magazine.