-98.05% is the change from 257 to 5
Calculation steps:
[( 5 - 257 ) ÷ 257] x 100 = -98.05%
Formula
Percentage change = [(5 - 257) / 257] x 100
Subtract the new number by the original number
5 - 257 = -252
-252 ÷ 257 = -0.980544747081712
-0.980544747081712 x 100 = -98.05%