-71.09% is the change from 671 to 194
Calculation steps:
[( 194 - 671 ) ÷ 671] x 100 = -71.09%
Formula
Percentage change = [(194 - 671) / 671] x 100
Subtract the new number by the original number
194 - 671 = -477
-477 ÷ 671 = -0.7108792846497765
-0.7108792846497765 x 100 = -71.09%