192.1% is the change from 291 to 850
Calculation steps:
[( 850 - 291 ) ÷ 291] x 100 = 192.1%
Formula
Percentage change = [(850 - 291) / 291] x 100
Subtract the new number by the original number
850 - 291 = 559
559 ÷ 291 = 1.9209621993127148
1.9209621993127148 x 100 = 192.1%