-91.36% is the change from 764 to 66
Calculation steps:
[( 66 - 764 ) ÷ 764] x 100 = -91.36%
Formula
Percentage change = [(66 - 764) / 764] x 100
Subtract the new number by the original number
66 - 764 = -698
-698 ÷ 764 = -0.9136125654450262
-0.9136125654450262 x 100 = -91.36%