-99.85% is the change from 674 to 1
Calculation steps:
[( 1 - 674 ) ÷ 674] x 100 = -99.85%
Formula
Percentage change = [(1 - 674) / 674] x 100
Subtract the new number by the original number
1 - 674 = -673
-673 ÷ 674 = -0.9985163204747775
-0.9985163204747775 x 100 = -99.85%