-65.51% is the change from 664 to 229
Calculation steps:
[( 229 - 664 ) ÷ 664] x 100 = -65.51%
Formula
Percentage change = [(229 - 664) / 664] x 100
Subtract the new number by the original number
229 - 664 = -435
-435 ÷ 664 = -0.6551204819277109
-0.6551204819277109 x 100 = -65.51%