-48.9% is the change from 456 to 233
Calculation steps:
[( 233 - 456 ) ÷ 456] x 100 = -48.9%
Formula
Percentage change = [(233 - 456) / 456] x 100
Subtract the new number by the original number
233 - 456 = -223
-223 ÷ 456 = -0.48903508771929827
-0.48903508771929827 x 100 = -48.9%