143.32% is the change from 337 to 820
Calculation steps:
[( 820 - 337 ) ÷ 337] x 100 = 143.32%
Formula
Percentage change = [(820 - 337) / 337] x 100
Subtract the new number by the original number
820 - 337 = 483
483 ÷ 337 = 1.4332344213649852
1.4332344213649852 x 100 = 143.32%