-48.66% is the change from 485 to 249
Calculation steps:
[( 249 - 485 ) ÷ 485] x 100 = -48.66%
Formula
Percentage change = [(249 - 485) / 485] x 100
Subtract the new number by the original number
249 - 485 = -236
-236 ÷ 485 = -0.4865979381443299
-0.4865979381443299 x 100 = -48.66%