Idea of Discount Icon
It’s a circular shape with triangular points on all sides. In the middle there is percentage symbol- a slanted line starting from the bottom left and going to the top right, with two zeros on either side of it.
This Discount icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,200 icons, all in the same style and quality.