There is something strange going on with Mark's downloaded prices, as for 31-May-18, High, Low, Close are out of order, while the volume is ok. It appears that the download information is being partially corrupted somewhere. Shouldn't RPP at least check that low <= close <= high ?
Could there be a phantom share price adjustment record ?
The common cause for share prices being multiples of what they should be is the Stock Type. The update in the 2017 version to include the Australian Share Market Indices involved setting the type Market Index to apply the Index display algorithm to the raw data received, rather than leaving it at the default share price display algorithm. So before a Market Index security type produced a correct result; now it does not.
Here is my RAP price history for Bluescope:
And here is Yahoo7 Finance listing of the data:
Hope this explains the situation.