-15.91% is the change from 924 to 777
Calculation steps:
[( 777 - 924 ) ÷ 924] x 100 = -15.91%
Formula
Percentage change = [(777 - 924) / 924] x 100
Subtract the new number by the original number
777 - 924 = -147
-147 ÷ 924 = -0.1590909090909091
-0.1590909090909091 x 100 = -15.91%