A new gold phone has different prices for different types ...

$1,544

$1,242

$2,285

$1,116

$1,899

$1,649

$1,423 and $1,242 - again ... what is the range of the prices shown above?

So,

The range will simply be the absolute value of the difference between the highest and lowest price.

The highest price is $2285.

The lowest price is $1116.

The absolute value of the difference between these two prices is:

|2285 - 1116| = 1169

The range of the prices for the gold phone is $1169.