433.75% is the change from 80 to 427
Calculation steps:
[( 427 - 80 ) ÷ 80] x 100 = 433.75%
Formula
Percentage change = [(427 - 80) / 80] x 100
Subtract the new number by the original number
427 - 80 = 347
347 ÷ 80 = 4.3375
4.3375 x 100 = 433.75%
Example