-97.67% is the change from 771 to 18
Calculation steps:
[( 18 - 771 ) ÷ 771] x 100 = -97.67%
Formula
Percentage change = [(18 - 771) / 771] x 100
Subtract the new number by the original number
18 - 771 = -753
-753 ÷ 771 = -0.9766536964980544
-0.9766536964980544 x 100 = -97.67%