-1.3% is the change from 770 to 760
Calculation steps:
[( 760 - 770 ) ÷ 770] x 100 = -1.3%
Formula
Percentage change = [(760 - 770) / 770] x 100
Subtract the new number by the original number
760 - 770 = -10
-10 ÷ 770 = -0.012987012987012988
-0.012987012987012988 x 100 = -1.3%