377.5% is the change from 80 to 382
Calculation steps:
[( 382 - 80 ) ÷ 80] x 100 = 377.5%
Formula
Percentage change = [(382 - 80) / 80] x 100
Subtract the new number by the original number
382 - 80 = 302
302 ÷ 80 = 3.775
3.775 x 100 = 377.5%
Example