-99.72% is the change from 722 to 2
Calculation steps:
[( 2 - 722 ) ÷ 722] x 100 = -99.72%
Formula
Percentage change = [(2 - 722) / 722] x 100
Subtract the new number by the original number
2 - 722 = -720
-720 ÷ 722 = -0.997229916897507
-0.997229916897507 x 100 = -99.72%