Why (at least 3 reasons) are there sales % plan increases (specifically) for May and June TY over LY?

Sales (LY) % Planned Increase Planned Sales for Period Initial Markup % Planned Reductions % Sales Distribution Stock-Sales Ratio Reductions Distribtution PLANNED MONTHLY SALES PLANNED MONTHLY BOM PLANNED MONTHLY EOM PLANNED MONTHLY REDUCTIONS PLANNED PURCHASES AT RETAIL PLANNED PURCHASES AT COST (0 $225.00 15.00% $258.75 note that this # is rounded up for season total in (HI 4) 52.95% note: that this % is based on plan for TY and on result of LY season FEB 13.16% 5.43 2.20% $34.08 $185.05 $186.11 $5.70 $40.84 $19.22 MAR 17.23% 4.17 2.00% $44.63 $186.11 $211.98 $5.18 $75.68 $35.61 APR 15.77% 5.19 2.10% $40.84 $211.98 $218.59 $5.44 $52.89 $24.89 MAY 17.05% 4.95 3.90% $44.16 $218.59 $197.79 $10.10 $33.46 $15.74 JUNE 18.95% 4.03 5.00% $49.08 $197.79 $223.17 $12.95 $87.41 $41.12 JULY 17.84% 4.83 3.80% $46.21 $223.17 $210.85 $9.84 $43.73 $20.57 SEASON 100.00% 1.26 19.00% AUGUST 17.14% 4.75 $259.00 $ 44.39 $204.79 $210.85 $49.21