So this table describes how many ATP molecules are actually formed either directly or indirectly by using glycolysis, Pyruvate decarboxylation and the citric acid cycle. So let's begin by looking at glycolysis. So glycolysis actually synthesizes two or a net result of two ATP molecules by substrate level phosphorylation. So we have a result of net two ATP molecules. Remember, glycolysis actually forms four but it uses up two. So we form a net of two ATP molecules.