-15.78% is the change from 957 to 806
Calculation steps:
[( 806 - 957 ) ÷ 957] x 100 = -15.78%
Formula
Percentage change = [(806 - 957) / 957] x 100
Subtract the new number by the original number
806 - 957 = -151
-151 ÷ 957 = -0.15778474399164055
-0.15778474399164055 x 100 = -15.78%