-69.3% is the change from 417 to 128
Calculation steps:
[( 128 - 417 ) ÷ 417] x 100 = -69.3%
Formula
Percentage change = [(128 - 417) / 417] x 100
Subtract the new number by the original number
128 - 417 = -289
-289 ÷ 417 = -0.6930455635491607
-0.6930455635491607 x 100 = -69.3%