348.05% is the change from 77 to 345
Calculation steps:
[( 345 - 77 ) ÷ 77] x 100 = 348.05%
Formula
Percentage change = [(345 - 77) / 77] x 100
Subtract the new number by the original number
345 - 77 = 268
268 ÷ 77 = 3.4805194805194803
3.4805194805194803 x 100 = 348.05%