-77.6% is the change from 616 to 138
Calculation steps:
[( 138 - 616 ) ÷ 616] x 100 = -77.6%
Formula
Percentage change = [(138 - 616) / 616] x 100
Subtract the new number by the original number
138 - 616 = -478
-478 ÷ 616 = -0.775974025974026
-0.775974025974026 x 100 = -77.6%
Example