-61.86% is the change from 991 to 378
Calculation steps:
[( 378 - 991 ) ÷ 991] x 100 = -61.86%
Formula
Percentage change = [(378 - 991) / 991] x 100
Subtract the new number by the original number
378 - 991 = -613
-613 ÷ 991 = -0.6185671039354188
-0.6185671039354188 x 100 = -61.86%