-47.51% is the change from 663 to 348
Calculation steps:
[( 348 - 663 ) ÷ 663] x 100 = -47.51%
Formula
Percentage change = [(348 - 663) / 663] x 100
Subtract the new number by the original number
348 - 663 = -315
-315 ÷ 663 = -0.4751131221719457
-0.4751131221719457 x 100 = -47.51%