-42.41% is the change from 257 to 148
Calculation steps:
[( 148 - 257 ) ÷ 257] x 100 = -42.41%
Formula
Percentage change = [(148 - 257) / 257] x 100
Subtract the new number by the original number
148 - 257 = -109
-109 ÷ 257 = -0.42412451361867703
-0.42412451361867703 x 100 = -42.41%