-6.2% is the change from 823 to 772
Calculation steps:
[( 772 - 823 ) ÷ 823] x 100 = -6.2%
Formula
Percentage change = [(772 - 823) / 823] x 100
Subtract the new number by the original number
772 - 823 = -51
-51 ÷ 823 = -0.061968408262454436
-0.061968408262454436 x 100 = -6.2%