-39.48% is the change from 651 to 394
Calculation steps:
[( 394 - 651 ) ÷ 651] x 100 = -39.48%
Formula
Percentage change = [(394 - 651) / 651] x 100
Subtract the new number by the original number
394 - 651 = -257
-257 ÷ 651 = -0.39477726574500765
-0.39477726574500765 x 100 = -39.48%