221.07% is the change from 261 to 838
Calculation steps:
[( 838 - 261 ) ÷ 261] x 100 = 221.07%
Formula
Percentage change = [(838 - 261) / 261] x 100
Subtract the new number by the original number
838 - 261 = 577
577 ÷ 261 = 2.210727969348659
2.210727969348659 x 100 = 221.07%