1231.25% is the change from 16 to 213
Calculation steps:
[( 213 - 16 ) ÷ 16] x 100 = 1231.25%
Formula
Percentage change = [(213 - 16) / 16] x 100
Subtract the new number by the original number
213 - 16 = 197
197 ÷ 16 = 12.3125
12.3125 x 100 = 1231.25%