-98.07% is the change from 674 to 13
Calculation steps:
[( 13 - 674 ) ÷ 674] x 100 = -98.07%
Formula
Percentage change = [(13 - 674) / 674] x 100
Subtract the new number by the original number
13 - 674 = -661
-661 ÷ 674 = -0.9807121661721068
-0.9807121661721068 x 100 = -98.07%