What

Created a toBeWithinPercent function to check if a number is within x percent of a target number, and toContainKeysWithinPercent function to check if an object contains keys and if the keys' values are within x percent of a target number.

Why

To be used similarly to the toBeWithin function, but sometimes a percentage is needed rather than a range.

The toContainKeysWithinPercent function is for a similar purpose but for use within an object.

Notes

Housekeeping

• Unit tests
• Documentation is up to date
• No additional lint warnings
• Typescript definitions are added/updated where relevant