-64.98% is the change from 671 to 235
Calculation steps:
[( 235 - 671 ) ÷ 671] x 100 = -64.98%
Formula
Percentage change = [(235 - 671) / 671] x 100
Subtract the new number by the original number
235 - 671 = -436
-436 ÷ 671 = -0.6497764530551415
-0.6497764530551415 x 100 = -64.98%