64.37% is the change from 334 to 549
Calculation steps:
[( 549 - 334 ) ÷ 334] x 100 = 64.37%
Formula
Percentage change = [(549 - 334) / 334] x 100
Subtract the new number by the original number
549 - 334 = 215
215 ÷ 334 = 0.6437125748502994
0.6437125748502994 x 100 = 64.37%