-48.35% is the change from 486 to 251
Calculation steps:
[( 251 - 486 ) ÷ 486] x 100 = -48.35%
Formula
Percentage change = [(251 - 486) / 486] x 100
Subtract the new number by the original number
251 - 486 = -235
-235 ÷ 486 = -0.4835390946502058
-0.4835390946502058 x 100 = -48.35%