-98.44% is the change from 257 to 4
Calculation steps:
[( 4 - 257 ) ÷ 257] x 100 = -98.44%
Formula
Percentage change = [(4 - 257) / 257] x 100
Subtract the new number by the original number
4 - 257 = -253
-253 ÷ 257 = -0.9844357976653697
-0.9844357976653697 x 100 = -98.44%