-65.13% is the change from 671 to 234
Calculation steps:
[( 234 - 671 ) ÷ 671] x 100 = -65.13%
Formula
Percentage change = [(234 - 671) / 671] x 100
Subtract the new number by the original number
234 - 671 = -437
-437 ÷ 671 = -0.6512667660208644
-0.6512667660208644 x 100 = -65.13%