337.5% is the change from 16 to 70
Calculation steps:
[( 70 - 16 ) ÷ 16] x 100 = 337.5%
Formula
Percentage change = [(70 - 16) / 16] x 100
Subtract the new number by the original number
70 - 16 = 54
54 ÷ 16 = 3.375
3.375 x 100 = 337.5%
Example