452.5% is the change from 80 to 442
Calculation steps:
[( 442 - 80 ) ÷ 80] x 100 = 452.5%
Formula
Percentage change = [(442 - 80) / 80] x 100
Subtract the new number by the original number
442 - 80 = 362
362 ÷ 80 = 4.525
4.525 x 100 = 452.5%
Example