121.35% is the change from 370 to 819
Calculation steps:
[( 819 - 370 ) ÷ 370] x 100 = 121.35%
Formula
Percentage change = [(819 - 370) / 370] x 100
Subtract the new number by the original number
819 - 370 = 449
449 ÷ 370 = 1.2135135135135136
1.2135135135135136 x 100 = 121.35%