171.48% is the change from 284 to 771
Calculation steps:
[( 771 - 284 ) ÷ 284] x 100 = 171.48%
Formula
Percentage change = [(771 - 284) / 284] x 100
Subtract the new number by the original number
771 - 284 = 487
487 ÷ 284 = 1.7147887323943662
1.7147887323943662 x 100 = 171.48%