-30.05% is the change from 366 to 256
Calculation steps:
[( 256 - 366 ) ÷ 366] x 100 = -30.05%
Formula
Percentage change = [(256 - 366) / 366] x 100
Subtract the new number by the original number
256 - 366 = -110
-110 ÷ 366 = -0.3005464480874317
-0.3005464480874317 x 100 = -30.05%