435.62% is the change from 73 to 391
Calculation steps:
[( 391 - 73 ) ÷ 73] x 100 = 435.62%
Formula
Percentage change = [(391 - 73) / 73] x 100
Subtract the new number by the original number
391 - 73 = 318
318 ÷ 73 = 4.3561643835616435
4.3561643835616435 x 100 = 435.62%