-90.64% is the change from 705 to 66
Calculation steps:
[( 66 - 705 ) ÷ 705] x 100 = -90.64%
Formula
Percentage change = [(66 - 705) / 705] x 100
Subtract the new number by the original number
66 - 705 = -639
-639 ÷ 705 = -0.9063829787234042
-0.9063829787234042 x 100 = -90.64%