In the case of journal entries relating to the opening or cancelling of contracts, a valuable check on the unsold lots may be obtained by the following simple means:

1. Rule a special column on each side of the general ledger account, showing the cost of the property; and when the opening debit entry is made, insert in the special column on the debit side the total number of lots acquired.

2. Use similar special columns in the journal when making journal entries affecting sales or cancellations of

Calculated on varying cost price, the figures are:

Total sales, as above..................................................

$7,200

Total amount paid in, as above......................................

1,872

Gain:

1

lot

at

$240

1

"

"

230

1

"

"

220

1

"

"

210

1

"

"

200

1

"

"

190

1

"

"

180

1

"

"

170

1

"

"

l60

1

"

"

150

1

'

"

140

1

"

"

130.

2,220

these lots, and also in the cash book when entering cash sales which are not journalized. Post the total of each of these special columns to the proper special column in the general ledger. The difference between the totals of the two ledger columns will then always show the number of lots unsold - a valuable figure which can be checked with the unsold lots as shown by the tickler and plats.