-90.52% is the change from 770 to 73
Calculation steps:
[( 73 - 770 ) ÷ 770] x 100 = -90.52%
Formula
Percentage change = [(73 - 770) / 770] x 100
Subtract the new number by the original number
73 - 770 = -697
-697 ÷ 770 = -0.9051948051948052
-0.9051948051948052 x 100 = -90.52%