Balance bitcoins by selling the higher to the lower

balancing_coins.py

coins = [
    {'name': 'ETH', 'qty': 0.81945672, 'price': 215.15},
    {'name': 'USDT', 'qty': 125.99, 'price': .99},
    {'name': 'BTC', 'qty': 0.02497291, 'price': 6895.15},
    {'name': 'BNB', 'qty': 20.91476451, 'price': 10.25},
]

def generate_balance(coins, prec=8):
    min = 999*999
    max = 0

    for coin in coins:
        value = coin['qty'] * coin['price']
        if value > max:
            max = value
            max_price = coin['price']
        if value < min:
            min = value
            min_price = coin['price']


    for coin in coins:
        if min == (coin['qty'] * coin['price']):
            lo = coin['name']
        elif max == (coin['qty'] * coin['price']):
            hi = coin['name']

    sell_qty = round((((max - min) / 2) / max_price), prec)
    return(hi, sell_qty, lo)

print(generate_balance(coins))