378.75% is the change from 80 to 383
Calculation steps:
[( 383 - 80 ) ÷ 80] x 100 = 378.75%
Formula
Percentage change = [(383 - 80) / 80] x 100
Subtract the new number by the original number
383 - 80 = 303
303 ÷ 80 = 3.7875
3.7875 x 100 = 378.75%
Example