-40.63% is the change from 662 to 393
Calculation steps:
[( 393 - 662 ) ÷ 662] x 100 = -40.63%
Formula
Percentage change = [(393 - 662) / 662] x 100
Subtract the new number by the original number
393 - 662 = -269
-269 ÷ 662 = -0.40634441087613293
-0.40634441087613293 x 100 = -40.63%