-40.32% is the change from 248 to 148
Calculation steps:
[( 148 - 248 ) ÷ 248] x 100 = -40.32%
Formula
Percentage change = [(148 - 248) / 248] x 100
Subtract the new number by the original number
148 - 248 = -100
-100 ÷ 248 = -0.4032258064516129
-0.4032258064516129 x 100 = -40.32%