This month, Christine earned a commission of 12/100 x $24000 = $<<12/100*24000=2880>>2880.
She allocated 60/100 x $2880 = $<<60/100*2880=1728>>1728 on her personal needs.
Therefore, she saved $2880 - $1728 = $<<2880-1728=1152>>1152 this month.
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