ModaMix black purple & white short sleeve blouse-size 14

ModaMix very short sleeve blouse. Colors are black, purple and white. There is a zipper in the back partway up. Size 14. Armpit to armpit is 24 inches, length is 27 inches. Material is 96% polyester, 4% spandex. In new condition. Says it’s an 18, but measurements say a 14 or 16.