This is a percentage sign. There is a circle on the left that is slightly higher than the circle on the right. In between is a forward slash dividing them. This is the same symbol you would see to distinguish 1% or 2% Milk
This is a Percentage icon. We've made it in iOS style
, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,700 icons, all in the same style and quality.