-86.81% is the change from 667 to 88
Calculation steps:
[( 88 - 667 ) ÷ 667] x 100 = -86.81%
Formula
Percentage change = [(88 - 667) / 667] x 100
Subtract the new number by the original number
88 - 667 = -579
-579 ÷ 667 = -0.8680659670164917
-0.8680659670164917 x 100 = -86.81%