A member of a commodity exchange holds positions in multiple corn futures contracts over several consecutive days. A corn futures contract represents 5,000 bushels. Information about the futures positions and daily settlement prices is given below:

| Position | Settlement price (in USD per bushel) |

|------------------------------|--------------------------------------|

| | Day 1 | Day 2 | Day 3 |

| Long September 1 corn contract | 4.75 | 4.95 | 4.85 |

| Short December 1 corn contract | 5.00 | 5.15 | 5.10 |

If the exchange has an automatic netting arrangement in place, what is the variation margin for the member at the end of day 2?