The only exception is when EI regular benefits and extended parental benefits are paid during the 52-week period. As extended parental benefits are paid at a benefit rate of 33% of your average weekly insurable earnings, once 50 weeks of benefits have been paid, the weeks of extended parental benefits will be converted to an equivalent number of weeks that would have been paid at the 55% benefit rate. This conversion will determine how many more weeks of regular benefits and special benefits can be paid to reach the equivalent of 50 weeks paid at the 55% benefits rate. Any weeks where you return to work during this period will be considered weeks paid for the purposes of calculating the equivalent of 50 weeks paid at the 55% benefit rate. Once the number of additional weeks that can be paid is determined, the 52-week benefit period will be extended to allow for the additional weeks to be paid.