-29.78% is the change from 366 to 257
Calculation steps:
[( 257 - 366 ) ÷ 366] x 100 = -29.78%
Formula
Percentage change = [(257 - 366) / 366] x 100
Subtract the new number by the original number
257 - 366 = -109
-109 ÷ 366 = -0.2978142076502732
-0.2978142076502732 x 100 = -29.78%