-45.49% is the change from 455 to 248
Calculation steps:
[( 248 - 455 ) ÷ 455] x 100 = -45.49%
Formula
Percentage change = [(248 - 455) / 455] x 100
Subtract the new number by the original number
248 - 455 = -207
-207 ÷ 455 = -0.45494505494505494
-0.45494505494505494 x 100 = -45.49%