-4.81% is the change from 645 to 614
Calculation steps:
[( 614 - 645 ) ÷ 645] x 100 = -4.81%
Formula
Percentage change = [(614 - 645) / 645] x 100
Subtract the new number by the original number
614 - 645 = -31
-31 ÷ 645 = -0.04806201550387597
-0.04806201550387597 x 100 = -4.81%