-7.56% is the change from 820 to 758
Calculation steps:
[( 758 - 820 ) ÷ 820] x 100 = -7.56%
Formula
Percentage change = [(758 - 820) / 820] x 100
Subtract the new number by the original number
758 - 820 = -62
-62 ÷ 820 = -0.07560975609756097
-0.07560975609756097 x 100 = -7.56%