76.64% is the change from 351 to 620
Calculation steps:
[( 620 - 351 ) ÷ 351] x 100 = 76.64%
Formula
Percentage change = [(620 - 351) / 351] x 100
Subtract the new number by the original number
620 - 351 = 269
269 ÷ 351 = 0.7663817663817664
0.7663817663817664 x 100 = 76.64%