-90.66% is the change from 707 to 66
Calculation steps:
[( 66 - 707 ) ÷ 707] x 100 = -90.66%
Formula
Percentage change = [(66 - 707) / 707] x 100
Subtract the new number by the original number
66 - 707 = -641
-641 ÷ 707 = -0.9066478076379066
-0.9066478076379066 x 100 = -90.66%