English training for work helps your team grow and expand their knowledge. Unfortunately, developing an employee - whether through internal promoting or outside hiring - means that there are costs associated. So let's talk numbers. According to the Society for Human Resource Management (SHRM), the average cost of hiring a new employees is anywhere from $4,000 to upwards of $28,000 per individual. Which includes the costs involved with paying instructors, job advertising, training materials, and potential relocation. What's more, external hires cost an average of 18% more than promoting from within. They are also 20% more likely to leave than someone who has just gotten a promotion.