ChargeTier

namestringrequired

quantitynumber<double>required

Number of units consumed

starting_afternumber<double>required

Starting point when this tier is applicable

pricenumber<double>required

Rate per unit

subtotalnumber<double>required

Total cost for the tier

ChargeTier

{
  "name": "string",
  "quantity": 0,
  "starting_after": 0,
  "price": 0,
  "subtotal": 0
}