-2.99% is the change from 770 to 747
Calculation steps:
[( 747 - 770 ) ÷ 770] x 100 = -2.99%
Formula
Percentage change = [(747 - 770) / 770] x 100
Subtract the new number by the original number
747 - 770 = -23
-23 ÷ 770 = -0.02987012987012987
-0.02987012987012987 x 100 = -2.99%