-65.46% is the change from 663 to 229
Calculation steps:
[( 229 - 663 ) ÷ 663] x 100 = -65.46%
Formula
Percentage change = [(229 - 663) / 663] x 100
Subtract the new number by the original number
229 - 663 = -434
-434 ÷ 663 = -0.6546003016591252
-0.6546003016591252 x 100 = -65.46%