-97.11% is the change from 726 to 21
Calculation steps:
[( 21 - 726 ) ÷ 726] x 100 = -97.11%
Formula
Percentage change = [(21 - 726) / 726] x 100
Subtract the new number by the original number
21 - 726 = -705
-705 ÷ 726 = -0.9710743801652892
-0.9710743801652892 x 100 = -97.11%