691.84% is the change from 49 to 388
Calculation steps:
[( 388 - 49 ) ÷ 49] x 100 = 691.84%
Formula
Percentage change = [(388 - 49) / 49] x 100
Subtract the new number by the original number
388 - 49 = 339
339 ÷ 49 = 6.918367346938775
6.918367346938775 x 100 = 691.84%