-1.57% is the change from 957 to 942
Calculation steps:
[( 942 - 957 ) ÷ 957] x 100 = -1.57%
Formula
Percentage change = [(942 - 957) / 957] x 100
Subtract the new number by the original number
942 - 957 = -15
-15 ÷ 957 = -0.01567398119122257
-0.01567398119122257 x 100 = -1.57%