-30.09% is the change from 957 to 669
Calculation steps:
[( 669 - 957 ) ÷ 957] x 100 = -30.09%
Formula
Percentage change = [(669 - 957) / 957] x 100
Subtract the new number by the original number
669 - 957 = -288
-288 ÷ 957 = -0.30094043887147337
-0.30094043887147337 x 100 = -30.09%