-83.06% is the change from 248 to 42
Calculation steps:
[( 42 - 248 ) ÷ 248] x 100 = -83.06%
Formula
Percentage change = [(42 - 248) / 248] x 100
Subtract the new number by the original number
42 - 248 = -206
-206 ÷ 248 = -0.8306451612903226
-0.8306451612903226 x 100 = -83.06%