-48.48% is the change from 493 to 254
Calculation steps:
[( 254 - 493 ) ÷ 493] x 100 = -48.48%
Formula
Percentage change = [(254 - 493) / 493] x 100
Subtract the new number by the original number
254 - 493 = -239
-239 ÷ 493 = -0.4847870182555781
-0.4847870182555781 x 100 = -48.48%