349.74% is the change from 189 to 850
Calculation steps:
[( 850 - 189 ) ÷ 189] x 100 = 349.74%
Formula
Percentage change = [(850 - 189) / 189] x 100
Subtract the new number by the original number
850 - 189 = 661
661 ÷ 189 = 3.497354497354497
3.497354497354497 x 100 = 349.74%