-12.53% is the change from 766 to 670
Calculation steps:
[( 670 - 766 ) ÷ 766] x 100 = -12.53%
Formula
Percentage change = [(670 - 766) / 766] x 100
Subtract the new number by the original number
670 - 766 = -96
-96 ÷ 766 = -0.12532637075718014
-0.12532637075718014 x 100 = -12.53%