-1.54% is the change from 971 to 956
Calculation steps:
[( 956 - 971 ) ÷ 971] x 100 = -1.54%
Formula
Percentage change = [(956 - 971) / 971] x 100
Subtract the new number by the original number
956 - 971 = -15
-15 ÷ 971 = -0.015447991761071062
-0.015447991761071062 x 100 = -1.54%