-95.55% is the change from 674 to 30
Calculation steps:
[( 30 - 674 ) ÷ 674] x 100 = -95.55%
Formula
Percentage change = [(30 - 674) / 674] x 100
Subtract the new number by the original number
30 - 674 = -644
-644 ÷ 674 = -0.9554896142433235
-0.9554896142433235 x 100 = -95.55%