-1.66% is the change from 783 to 770
Calculation steps:
[( 770 - 783 ) ÷ 783] x 100 = -1.66%
Formula
Percentage change = [(770 - 783) / 783] x 100
Subtract the new number by the original number
770 - 783 = -13
-13 ÷ 783 = -0.016602809706257982
-0.016602809706257982 x 100 = -1.66%