-87.53% is the change from 393 to 49
Calculation steps:
[( 49 - 393 ) ÷ 393] x 100 = -87.53%
Formula
Percentage change = [(49 - 393) / 393] x 100
Subtract the new number by the original number
49 - 393 = -344
-344 ÷ 393 = -0.8753180661577609
-0.8753180661577609 x 100 = -87.53%