-5.28% is the change from 815 to 772
Calculation steps:
[( 772 - 815 ) ÷ 815] x 100 = -5.28%
Formula
Percentage change = [(772 - 815) / 815] x 100
Subtract the new number by the original number
772 - 815 = -43
-43 ÷ 815 = -0.05276073619631902
-0.05276073619631902 x 100 = -5.28%