-32.09% is the change from 988 to 671
Calculation steps:
[( 671 - 988 ) ÷ 988] x 100 = -32.09%
Formula
Percentage change = [(671 - 988) / 988] x 100
Subtract the new number by the original number
671 - 988 = -317
-317 ÷ 988 = -0.3208502024291498
-0.3208502024291498 x 100 = -32.09%