-7.08% is the change from 664 to 617
Calculation steps:
[( 617 - 664 ) ÷ 664] x 100 = -7.08%
Formula
Percentage change = [(617 - 664) / 664] x 100
Subtract the new number by the original number
617 - 664 = -47
-47 ÷ 664 = -0.07078313253012049
-0.07078313253012049 x 100 = -7.08%