688% is the change from 50 to 394
Calculation steps:
[( 394 - 50 ) ÷ 50] x 100 = 688%
Formula
Percentage change = [(394 - 50) / 50] x 100
Subtract the new number by the original number
394 - 50 = 344
344 ÷ 50 = 6.88
6.88 x 100 = 688%
Example