-49.03% is the change from 669 to 341
Calculation steps:
[( 341 - 669 ) ÷ 669] x 100 = -49.03%
Formula
Percentage change = [(341 - 669) / 669] x 100
Subtract the new number by the original number
341 - 669 = -328
-328 ÷ 669 = -0.49028400597907323
-0.49028400597907323 x 100 = -49.03%