-29.89% is the change from 957 to 671
Calculation steps:
[( 671 - 957 ) ÷ 957] x 100 = -29.89%
Formula
Percentage change = [(671 - 957) / 957] x 100
Subtract the new number by the original number
671 - 957 = -286
-286 ÷ 957 = -0.2988505747126437
-0.2988505747126437 x 100 = -29.89%