Abigail had $20 + $40 = $<<20+40=60>>60 left after paying her phone bill.
The $60 is 100% - 25% = 75% of the remainder of her money after spending for food.
Since 75% is $60, then 1% is $60/75 = $<<60/75=0.80>>0.80.
Thus, Abigail had $0.80 x 100 = $<<0.80*100=80>>80 left after she spent money on food.
The $80 is 100% - 60% = 40% of her original money.
So 1% is $80/40 = $<<80/40=2>>2.
Therefore, Abigail initially had $2 x 100 = $<<2*100=200>>200.
#### 200