A firm in the market for designer jeans has some degree of monopoly power. The demand curve it faces has a price elasticity of demand of -2, while the price elasticity demand of the market is -1.25. Moreover, the firm has a constant marginal cost of $50. Given the information, use the Lerner Index of Monopoly Power to calculate the firm's monopoly power.
L = ___ (Round answer to two decimal places)