-5.45% is the change from 257 to 243
Calculation steps:
[( 243 - 257 ) ÷ 257] x 100 = -5.45%
Formula
Percentage change = [(243 - 257) / 257] x 100
Subtract the new number by the original number
243 - 257 = -14
-14 ÷ 257 = -0.054474708171206226
-0.054474708171206226 x 100 = -5.45%
Example