-11.75% is the change from 664 to 586
Calculation steps:
[( 586 - 664 ) ÷ 664] x 100 = -11.75%
Formula
Percentage change = [(586 - 664) / 664] x 100
Subtract the new number by the original number
586 - 664 = -78
-78 ÷ 664 = -0.11746987951807229
-0.11746987951807229 x 100 = -11.75%