776.32% is the change from 76 to 666
Calculation steps:
[( 666 - 76 ) ÷ 76] x 100 = 776.32%
Formula
Percentage change = [(666 - 76) / 76] x 100
Subtract the new number by the original number
666 - 76 = 590
590 ÷ 76 = 7.7631578947368425
7.7631578947368425 x 100 = 776.32%