风险回报比公式

公式

计算示例

入场价: $2,650, 止损价: $2,625, 止盈价: $2,700
风险 = $2,650 - $2,625 = $25
回报 = $2,700 - $2,650 = $50
R:R = $50 / $25 = 2.0 (1:2)
盈亏平衡胜率 = 1 / (1 + 2) x 100% = 33.3%

Python 实现

from dapex_calculators.position_size import calculate_risk_reward
result = calculate_risk_reward(2650, 2625, 2700, 'long')
print(f"R:R = 1:{{result['rrr']}}, 盈亏平衡: {{result['breakeven_winrate']}}%")