1700% is the change from 37 to 666
Calculation steps:
[( 666 - 37 ) ÷ 37] x 100 = 1700%
Formula
Percentage change = [(666 - 37) / 37] x 100
Subtract the new number by the original number
666 - 37 = 629
629 ÷ 37 = 17
17 x 100 = 1700%
Example