Higher Starting Pay = More Savings

Start higher, run faster, earn more.
If you earn $5,000 a month and your essential expenses are $4,000, your net surplus is $1,000. If you earn $10,000 a month with the same $4,000 in essential expenses, your net surplus jumps to $6,000.
Even though your salary only doubled, your surplus increased sixfold.
Do you see it? Is starting at a higher level only a little better?