-1.54% is the change from 972 to 957
Calculation steps:
[( 957 - 972 ) ÷ 972] x 100 = -1.54%
Formula
Percentage change = [(957 - 972) / 972] x 100
Subtract the new number by the original number
957 - 972 = -15
-15 ÷ 972 = -0.015432098765432098
-0.015432098765432098 x 100 = -1.54%