161.46% is the change from 314 to 821
Calculation steps:
[( 821 - 314 ) ÷ 314] x 100 = 161.46%
Formula
Percentage change = [(821 - 314) / 314] x 100
Subtract the new number by the original number
821 - 314 = 507
507 ÷ 314 = 1.6146496815286624
1.6146496815286624 x 100 = 161.46%