-5.75% is the change from 644 to 607
Calculation steps:
[( 607 - 644 ) ÷ 644] x 100 = -5.75%
Formula
Percentage change = [(607 - 644) / 644] x 100
Subtract the new number by the original number
607 - 644 = -37
-37 ÷ 644 = -0.05745341614906832
-0.05745341614906832 x 100 = -5.75%