-51.2% is the change from 457 to 223
Calculation steps:
[( 223 - 457 ) ÷ 457] x 100 = -51.2%
Formula
Percentage change = [(223 - 457) / 457] x 100
Subtract the new number by the original number
223 - 457 = -234
-234 ÷ 457 = -0.5120350109409191
-0.5120350109409191 x 100 = -51.2%