-64% is the change from 350 to 126
Calculation steps:
[( 126 - 350 ) ÷ 350] x 100 = -64%
Formula
Percentage change = [(126 - 350) / 350] x 100
Subtract the new number by the original number
126 - 350 = -224
-224 ÷ 350 = -0.64
-0.64 x 100 = -64%
Example