-48.16% is the change from 490 to 254
Calculation steps:
[( 254 - 490 ) ÷ 490] x 100 = -48.16%
Formula
Percentage change = [(254 - 490) / 490] x 100
Subtract the new number by the original number
254 - 490 = -236
-236 ÷ 490 = -0.4816326530612245
-0.4816326530612245 x 100 = -48.16%