-82.27% is the change from 423 to 75
Calculation steps:
[( 75 - 423 ) ÷ 423] x 100 = -82.27%
Formula
Percentage change = [(75 - 423) / 423] x 100
Subtract the new number by the original number
75 - 423 = -348
-348 ÷ 423 = -0.8226950354609929
-0.8226950354609929 x 100 = -82.27%