-39.36% is the change from 409 to 248
Calculation steps:
[( 248 - 409 ) ÷ 409] x 100 = -39.36%
Formula
Percentage change = [(248 - 409) / 409] x 100
Subtract the new number by the original number
248 - 409 = -161
-161 ÷ 409 = -0.39364303178484106
-0.39364303178484106 x 100 = -39.36%