-1.91% is the change from 785 to 770
Calculation steps:
[( 770 - 785 ) ÷ 785] x 100 = -1.91%
Formula
Percentage change = [(770 - 785) / 785] x 100
Subtract the new number by the original number
770 - 785 = -15
-15 ÷ 785 = -0.01910828025477707
-0.01910828025477707 x 100 = -1.91%