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You average 7.0 CS per minute as Mid; Master players average about 7.8. Every 15 CS is roughly a kill worth of gold. Practise last-hitting under tower, shove the wave before recalling, and catch side waves between fights instead of standing in lane doing nothing.
You take part in 51% of your team's kills; Master players average 60%. After your first item, look to rotate for dragon, grubs and herald, and keep Teleport for fights rather than for farming.
Your main role is only 50% of your games. Each role has different macro; playing one primary and one secondary role gets you a lot more repetitions of the same decisions.
