Да, писал по памяти:
LAY: 0.01 * PERCENTAGE * IF(test_mode=1, test_balance, balance) / (lay_price - 1)[color=#000000][size=1][font=dejavu sans mono, monaco, lucida console, courier new, monospace]
BACK: 0.01 * PERCENTAGE * IF(test_mode=1, test_balance, balance)