2100% is the change from 37 to 814
Calculation steps:
[( 814 - 37 ) ÷ 37] x 100 = 2100%
Formula
Percentage change = [(814 - 37) / 37] x 100
Subtract the new number by the original number
814 - 37 = 777
777 ÷ 37 = 21
21 x 100 = 2100%
Example