-57.11% is the change from 991 to 425
Calculation steps:
[( 425 - 991 ) ÷ 991] x 100 = -57.11%
Formula
Percentage change = [(425 - 991) / 991] x 100
Subtract the new number by the original number
425 - 991 = -566
-566 ÷ 991 = -0.5711402623612513
-0.5711402623612513 x 100 = -57.11%