-82.49% is the change from 417 to 73
Calculation steps:
[( 73 - 417 ) ÷ 417] x 100 = -82.49%
Formula
Percentage change = [(73 - 417) / 417] x 100
Subtract the new number by the original number
73 - 417 = -344
-344 ÷ 417 = -0.8249400479616307
-0.8249400479616307 x 100 = -82.49%