mistake on both CFA curriculum and Schweser?

CFA curriculum Volumn 2 Economics: Page 79, the graph: with $20 subsidy, the supply curve moves $20 down, how come the quantity move 20 million to the right? Schweser Book2: page 41, when supply curve shifts $30 down, how come the quantity shift 30 million to the right?

Looks good to me, what’s wrong with it?