-50.25% is the change from 790 to 393
Calculation steps:
[( 393 - 790 ) ÷ 790] x 100 = -50.25%
Formula
Percentage change = [(393 - 790) / 790] x 100
Subtract the new number by the original number
393 - 790 = -397
-397 ÷ 790 = -0.5025316455696203
-0.5025316455696203 x 100 = -50.25%