What is the test for substantial contribution under section 498 of the Canadian Standards of Civil Procedure and Procedure Act?

The Court in Williamson v. Williams, 1998 NSCA 195 (CanLII), [1998] N.S.J. No. 498 (C.A), at paragraph 25, stated the following in relation to the meaning of “substantial contribution”: “In my view, a reasonable interpretation of this language suggests that a ‘substantial contribution’ not amounting to a complete indemnity must initially have been intended to mean more than fifty and less than one hundred percent of a lawyer’s reasonable bill for the services involved. A range for party and party costs between two-thirds and three-quarters of solicitor and client costs, objectively determined, might have seemed reasonable. There has been considerable slippage since 1989 because of escalating legal fees, and costs awards representing a much lower proportion of legal fees actually paid appear to have become standard and accepted practice in cases not involving misconduct or other special circumstances.”