-97.75% is the change from 932 to 21
Calculation steps:
[( 21 - 932 ) ÷ 932] x 100 = -97.75%
Formula
Percentage change = [(21 - 932) / 932] x 100
Subtract the new number by the original number
21 - 932 = -911
-911 ÷ 932 = -0.9774678111587983
-0.9774678111587983 x 100 = -97.75%