1800% is the change from 35 to 665
Calculation steps:
[( 665 - 35 ) ÷ 35] x 100 = 1800%
Formula
Percentage change = [(665 - 35) / 35] x 100
Subtract the new number by the original number
665 - 35 = 630
630 ÷ 35 = 18
18 x 100 = 1800%
Example