-50.57% is the change from 698 to 345
Calculation steps:
[( 345 - 698 ) ÷ 698] x 100 = -50.57%
Formula
Percentage change = [(345 - 698) / 698] x 100
Subtract the new number by the original number
345 - 698 = -353
-353 ÷ 698 = -0.505730659025788
-0.505730659025788 x 100 = -50.57%