-67.82% is the change from 957 to 308
Calculation steps:
[( 308 - 957 ) ÷ 957] x 100 = -67.82%
Formula
Percentage change = [(308 - 957) / 957] x 100
Subtract the new number by the original number
308 - 957 = -649
-649 ÷ 957 = -0.6781609195402298
-0.6781609195402298 x 100 = -67.82%