-97.26% is the change from 766 to 21
Calculation steps:
[( 21 - 766 ) ÷ 766] x 100 = -97.26%
Formula
Percentage change = [(21 - 766) / 766] x 100
Subtract the new number by the original number
21 - 766 = -745
-745 ÷ 766 = -0.9725848563968669
-0.9725848563968669 x 100 = -97.26%