-27.81% is the change from 356 to 257
Calculation steps:
[( 257 - 356 ) ÷ 356] x 100 = -27.81%
Formula
Percentage change = [(257 - 356) / 356] x 100
Subtract the new number by the original number
257 - 356 = -99
-99 ÷ 356 = -0.27808988764044945
-0.27808988764044945 x 100 = -27.81%