-93.84% is the change from 991 to 61
Calculation steps:
[( 61 - 991 ) ÷ 991] x 100 = -93.84%
Formula
Percentage change = [(61 - 991) / 991] x 100
Subtract the new number by the original number
61 - 991 = -930
-930 ÷ 991 = -0.9384460141271443
-0.9384460141271443 x 100 = -93.84%