-7.72% is the change from 648 to 598
Calculation steps:
[( 598 - 648 ) ÷ 648] x 100 = -7.72%
Formula
Percentage change = [(598 - 648) / 648] x 100
Subtract the new number by the original number
598 - 648 = -50
-50 ÷ 648 = -0.07716049382716049
-0.07716049382716049 x 100 = -7.72%