Target heart rate for moderate exercise is $50\%$ to $70\%$ of maximum heart rate. If we want to represent a certain percent of an individual’s maximum heart rate, we’d use the formula where $p$ is the percent, and $a$ is age in years. Determine the target heart rate at $54\%$ level for someone who is $44$ years old. Round your answer to an integer. The target heart rate at $54\%$ level for someone who is $44$ years old is beats per minute.