212.5% is the change from 16 to 50
Calculation steps:
[( 50 - 16 ) ÷ 16] x 100 = 212.5%
Formula
Percentage change = [(50 - 16) / 16] x 100
Subtract the new number by the original number
50 - 16 = 34
34 ÷ 16 = 2.125
2.125 x 100 = 212.5%
Example