LenghtFeeAdjustment requires 4 parameters to update targeted_length_fee_adjustment at the end of each block. The value is used in the following formula:

inclusion_fee = base_fee + [targeted_length_fee_adjustment * length_fee] + [targeted_weight_fee_adjustment * weight_fee];

It requires 4 parameters:

• Target
• AdjustmentVariable
• MinimumMultiplier
• MaximumMultiplier

The current values for targeted_weight_fee_adjustment are:

• TargetBlockFullness = 25%
• AdjustmentVariableBlockFullness = 75/1_000_000
• MinimumMultiplierBlockFullness = 1/10
• MaximumMultiplierBlockFullness = FixedU128::max_value()

These values are defined here to define SlowAdjustingFeeUpdate.

For targeted_length_fee_adjustment, the values are:

• TargetBlockSize = 16%
  • If the total block size is 5MiB, then the target block size is 0.8MiB.
• AdjustmentVariableBlockSize = 1/840
  • This value means that the maximum fee variation in one hour is 30%, following the formula v = p / k * (1 - s*), where p represents the maximum fee variation percentage, k represents the period in which the variation is defined (in blocks), and s* represents the target percentage.
• MinimumMultiplierBlockSize = TODO
• MaximumMultiplierBlockSize = FixedU128::max_value()