split_amount_with_error.py

import random
from decimal import Decimal, getcontext

getcontext().prec = 7

def split_amount_with_error(total_amount, parts=10, error_percent=10):
    total_amount = Decimal(str(total_amount))
    error_fraction = Decimal(str(error_percent)) / Decimal('100')
    
    base_part = total_amount / Decimal(str(parts))
    parts_list = []
    
    factor_min = 1 - error_fraction
    factor_max = 1 + error_fraction
        
    for _ in range(parts - 1):
        random_factor = random.uniform(float(factor_min), float(factor_max))
        factor = Decimal(str(random_factor))
        
        part = base_part * factor
        parts_list.append(part)
    
    last_part = total_amount - sum(parts_list)
    parts_list.append(last_part)
    
    return parts_list

total = 120_919
parts = split_amount_with_error(total)

print("Money Parts:")
for i, p in enumerate(parts, 1):
    print(f"Part {i}: {p:.10f}")

print(f"\nSum of parts: {sum(parts):.10f}")
print(f"Original amount: {Decimal(str(total)):.10f}")
print(f"Difference: {abs(sum(parts) - Decimal(str(total))):.10f}")