-93.51% is the change from 771 to 50
Calculation steps:
[( 50 - 771 ) ÷ 771] x 100 = -93.51%
Formula
Percentage change = [(50 - 771) / 771] x 100
Subtract the new number by the original number
50 - 771 = -721
-721 ÷ 771 = -0.9351491569390402
-0.9351491569390402 x 100 = -93.51%