-90.25% is the change from 667 to 65
Calculation steps:
[( 65 - 667 ) ÷ 667] x 100 = -90.25%
Formula
Percentage change = [(65 - 667) / 667] x 100
Subtract the new number by the original number
65 - 667 = -602
-602 ÷ 667 = -0.9025487256371814
-0.9025487256371814 x 100 = -90.25%