76.92% is the change from 351 to 621
Calculation steps:
[( 621 - 351 ) ÷ 351] x 100 = 76.92%
Formula
Percentage change = [(621 - 351) / 351] x 100
Subtract the new number by the original number
621 - 351 = 270
270 ÷ 351 = 0.7692307692307693
0.7692307692307693 x 100 = 76.92%