The bigger measurement (left), within the Curves vary, prices £22.99, whereas the very related pair in the usual vary value £19.99
Fashion chain New Look is reviewing its prices after an outcry that some larger-sized garments have been dearer than these in smaller sizes.
The High Street retailer stated it hoped to "guarantee pricing variations like these" didn't occur in future.
It comes after a shopper noticed trousers in its Curves vary value 15% greater than a pair in the primary assortment.
The difficulty has divided opinion over whether or not utilizing extra materials ought to imply larger prices.
Some have stated it's affordable to cost extra for a garment that makes use of extra cloth. Others see it as a "fats tax".
Plus-size mannequin Nyome Nicholas-Williams instructed the BBC's Victoria Derbyshire programme she felt the applying of upper prices was discriminatory.
"Some individuals do not select to be the scale they'reor peak. If it's important to pay more money [for clothes] subliminally it seems like you're being instructed it's important to drop some weight," she stated.
However, Anna Scholz, a plus-size dressmaker, instructed the programme there was a restrict to the scale vary that may very well be produced for a similar worth as it may take twice the material to make the identical shirt for a bigger measurement as a small one.
"As a firm we promote from measurement 16 to 28if I had smaller sizes as effectively I must worth them in a different way."
Victoria with designer Anna Scholz and plus-size mannequin Nyome Nicholas-Williams
Maria Wassell, a retail supervisor from Kent, noticed the discrepancy at her native New Look department in Ashford in Kent.
She instructed the Sun newspaper: "It's like I am being discriminated in opposition to for being plus-size once I'm solely barely larger than common.
"The common measurement for a British girl is now a measurement 16. Plus-size purchases are on the rise. If you have a look at the statistics, there's more cash being spent on plus-size clothing now then there was even three years in the past."
Ms Wassell stated she used to work for a plus-size model, and the argument that garments for larger sizes wanted to be priced extra extremely was "mainly garbage".
Emily Sutherland, options author at vogue commerce journal Drapers, additionally had little time for that clarification.
"Retailers might argue a bigger measurement requires extra cloth and is due to this fact dearer to supply... or that there are refined variations between straight and plus-size merchandise that influence on worth, however clients level out tall and maternity ranges, which additionally use extra cloth, are hardly ever priced largerand that smaller petite merchandise are unlikely to be cheaper."
She stated harmonising prices between the ranges was turning into more and more widespread.
New Look stated in an assertion: "We are within the strategy of reviewing the pricing construction of our Plus Size assortment in a manner which works greatest for our clients and our enterprise.
"We are happy with the ranges we provide to our Plus Size clients and worth all clients, it doesn't matter what their physique form or measurement."
Earlier this 12 months, New Look introduced it could shut 60 UK shops and lower 1,000 jobs as a part of a monetary restructuring.