For a variation of the resistor only if it is of carbon deposit o carbon film. If the one you used is metal film or wire wound there is no variation.
Usually in design you must calculate the Lmin and Lmax of the inductor and use a intermediate value. If you used a smaller or greater problems will ocour.
Switch-mode Power Supply Spice Cookbook, Christophe P. Basso, McGraw-Hill
Simplified Design os Switching Power Supplies, John D. LEnk, Butterworth-Heinemann