-15.04% is the change from 971 to 825
Calculation steps:
[( 825 - 971 ) ÷ 971] x 100 = -15.04%
Formula
Percentage change = [(825 - 971) / 971] x 100
Subtract the new number by the original number
825 - 971 = -146
-146 ÷ 971 = -0.15036045314109167
-0.15036045314109167 x 100 = -15.04%