As you are browsing the Silhouette Design Store, you may encounter designs where the price changes between the A) grid preview while browsing, and the B) design page (see example below).
The price preview that you see as you browse applies to the basic purchase of the design (the 'STUDIO' file with a 'Personal Use' license), the addition of an SVG file and/or a Commercial License will increase the purchase price.
NOTE: You can enable or disable the account setting to always add SVG files when available under the 'Download Preferences' section of your account.
You can also check or uncheck purchase options prior to adding the design to your cart, or you can make adjustments from your shopping cart.