Best way to range check for an input for asp.net core

namespace xxx.Models
{
    // Centralised validation rules for LoanAmount
    // Kept as a static class to avoid introducing DI/config complexity for a take-home
    public static class PayAmountRules
    {

        public const decimal Min = 1_000m;
        public const decimal Max = 2_000_000m;

        public static bool IsValid(decimal value) => value >= Min && value <= Max;
    }
}

using System.ComponentModel.DataAnnotations;

namespace xxx.Models
{

    public sealed class Application
    {
       
        public Guid Id { get; set; }

        [Required]
        [MaxLength(100)]
        public string ApplicantName { get; set; } = string.Empty;

        [Required]
        public decimal Amount{ get; set; }

        public DateTimeOffset CreatedOn { get; set; }

        public ApplicationStatus Status { get; set; } = ApplicationStatus.Submitted;
    }
}

using System.ComponentModel.DataAnnotations;

namespace xxx.DTOs
{
   
    public sealed class CreateApplicationRequest
    {
        [Required]
        [MinLength(2)]
        [MaxLength(100)]
        public string ApplicantName { get; init; } = string.Empty;

        public decimal Amount { get; init; }
    }
}