-49.42% is the change from 690 to 349
Calculation steps:
[( 349 - 690 ) ÷ 690] x 100 = -49.42%
Formula
Percentage change = [(349 - 690) / 690] x 100
Subtract the new number by the original number
349 - 690 = -341
-341 ÷ 690 = -0.49420289855072463
-0.49420289855072463 x 100 = -49.42%