-84.47% is the change from 470 to 73
Calculation steps:
[( 73 - 470 ) ÷ 470] x 100 = -84.47%
Formula
Percentage change = [(73 - 470) / 470] x 100
Subtract the new number by the original number
73 - 470 = -397
-397 ÷ 470 = -0.8446808510638298
-0.8446808510638298 x 100 = -84.47%