128.49% is the change from 337 to 770
Calculation steps:
[( 770 - 337 ) ÷ 337] x 100 = 128.49%
Formula
Percentage change = [(770 - 337) / 337] x 100
Subtract the new number by the original number
770 - 337 = 433
433 ÷ 337 = 1.28486646884273
1.28486646884273 x 100 = 128.49%