-57.2% is the change from 799 to 342
Calculation steps:
[( 342 - 799 ) ÷ 799] x 100 = -57.2%
Formula
Percentage change = [(342 - 799) / 799] x 100
Subtract the new number by the original number
342 - 799 = -457
-457 ÷ 799 = -0.571964956195244
-0.571964956195244 x 100 = -57.2%