Move net income or net sales and watch the margin recompute.
Each sales dollar: 46.4¢ kept as profit, 53.6¢ consumed by expenses.
is net income divided by net sales: the share of each sales dollar that survives every expense. FastForward earned $3,785 on $8,150 of revenue — a margin of 46.4%, high because a one-person consulting business has almost no cost of goods sold. Compare margins within one industry and over time, not across unrelated businesses.