-11.57% is the change from 778 to 688
Calculation steps:
[( 688 - 778 ) ÷ 778] x 100 = -11.57%
Formula
Percentage change = [(688 - 778) / 778] x 100
Subtract the new number by the original number
688 - 778 = -90
-90 ÷ 778 = -0.11568123393316196
-0.11568123393316196 x 100 = -11.57%