-56.7% is the change from 515 to 223
Calculation steps:
[( 223 - 515 ) ÷ 515] x 100 = -56.7%
Formula
Percentage change = [(223 - 515) / 515] x 100
Subtract the new number by the original number
223 - 515 = -292
-292 ÷ 515 = -0.566990291262136
-0.566990291262136 x 100 = -56.7%