Two filings rather than one, with their own preparation and government charges taken from the current fee schedule. The second is not a discounted version of the first: the managerial test requires its own evidence, including an organisation chart and subordinate job descriptions that may not yet exist.
Plan for two filings if a promotion is likely
The common budgeting error is to treat the initial petition as the whole cost of a five-year assignment. Where a promotion is foreseeable, and in a growing affiliate it usually is, the realistic budget contains two complete filings. The first is evidence-heavy on the technical side, requiring extraction of protocols, revision histories and training records.
The second is evidence-heavy on the organisational side, requiring an organisation chart with named subordinates and salaries, job descriptions for those roles, and a defensible allocation of the beneficiary's time. Neither reuses much of the other. Government charges apply to each and should be confirmed on the current published schedule, since L petitions can carry more than one and some depend on the employer's workforce.
Around both sit the costs of any request for evidence. Employers who know this in advance often structure the promotion for a moment when the subordinate structure genuinely exists, which is cheaper and stronger than promoting first and evidencing later.