-48.55% is the change from 688 to 354
Calculation steps:
[( 354 - 688 ) ÷ 688] x 100 = -48.55%
Formula
Percentage change = [(354 - 688) / 688] x 100
Subtract the new number by the original number
354 - 688 = -334
-334 ÷ 688 = -0.48546511627906974
-0.48546511627906974 x 100 = -48.55%