-63.48% is the change from 345 to 126
Calculation steps:
[( 126 - 345 ) ÷ 345] x 100 = -63.48%
Formula
Percentage change = [(126 - 345) / 345] x 100
Subtract the new number by the original number
126 - 345 = -219
-219 ÷ 345 = -0.6347826086956522
-0.6347826086956522 x 100 = -63.48%