-4.18% is the change from 957 to 917
Calculation steps:
[( 917 - 957 ) ÷ 957] x 100 = -4.18%
Formula
Percentage change = [(917 - 957) / 957] x 100
Subtract the new number by the original number
917 - 957 = -40
-40 ÷ 957 = -0.04179728317659352
-0.04179728317659352 x 100 = -4.18%