If a policy reduces methane emissions by 15% per year, starting from 500,000 metric tons, what are the emissions after 3 years?

As global discussions around climate action grow more urgent, policies targeting methane reductions are drawing close attention—especially in the U.S., where energy agencies and environmental regulators are exploring measurable cuts. If a policy successfully reduces methane emissions by 15% each year, starting from 500,000 metric tons, how much would emissions shrink over three years? The answer reveals the