Round 222,977 to the nearest hundred

Since we are rounding to the nearest hundreds place in 222,977 the hundreds would be the 9. The seven behind it would make the number round up since the rule is 0-5 round down 6-9 round up. you round the 9 up to 10 so you add 1 to the next number since you cant have 222,1000. thats wrong . the answer is
223,000

223,000
 the 7 in the ones place added 1 to the 7 in the tens place so that 7 turns into a 8 which turns the 9 to 10 so you 1 to the 2 in the thousands place and the hundreds tens and ones become 0