-9.63% is the change from 820 to 741
Calculation steps:
[( 741 - 820 ) ÷ 820] x 100 = -9.63%
Formula
Percentage change = [(741 - 820) / 820] x 100
Subtract the new number by the original number
741 - 820 = -79
-79 ÷ 820 = -0.09634146341463415
-0.09634146341463415 x 100 = -9.63%