75.51% is the change from 392 to 688
Calculation steps:
[( 688 - 392 ) ÷ 392] x 100 = 75.51%
Formula
Percentage change = [(688 - 392) / 392] x 100
Subtract the new number by the original number
688 - 392 = 296
296 ÷ 392 = 0.7551020408163265
0.7551020408163265 x 100 = 75.51%