-70.78% is the change from 438 to 128
Calculation steps:
[( 128 - 438 ) ÷ 438] x 100 = -70.78%
Formula
Percentage change = [(128 - 438) / 438] x 100
Subtract the new number by the original number
128 - 438 = -310
-310 ÷ 438 = -0.7077625570776256
-0.7077625570776256 x 100 = -70.78%