85.63% is the change from 334 to 620
Calculation steps:
[( 620 - 334 ) ÷ 334] x 100 = 85.63%
Formula
Percentage change = [(620 - 334) / 334] x 100
Subtract the new number by the original number
620 - 334 = 286
286 ÷ 334 = 0.8562874251497006
0.8562874251497006 x 100 = 85.63%