325% is the change from 200 to 850
Calculation steps:
[( 850 - 200 ) ÷ 200] x 100 = 325%
Formula
Percentage change = [(850 - 200) / 200] x 100
Subtract the new number by the original number
850 - 200 = 650
650 ÷ 200 = 3.25
3.25 x 100 = 325%
Example