What is the salary difference between Form 1 and Form 2?

900 yuan. From the recruitment brochures of Form 1 and Form 2, we can see that the monthly salary of Form 1 is 3,400 yuan, and the monthly salary of Form 2 is 2,500 yuan. Using the subtraction algorithm, we can see that subtracting 2,500 yuan from 3,400 yuan equals 900 yuan. Therefore, the salary difference is 900 yuan. Wages refer to the remuneration paid to employees in the form of currency by employers or statutory employers in accordance with legal provisions, industry regulations, or agreements with employees.