-1.75% is the change from 57 to 56
Calculation steps:
[( 56 - 57 ) ÷ 57] x 100 = -1.75%
Formula
Percentage change = [(56 - 57) / 57] x 100
Subtract the new number by the original number
56 - 57 = -1
-1 ÷ 57 = -0.017543859649122806
-0.017543859649122806 x 100 = -1.75%