213.75% is the change from 80 to 251
Calculation steps:
[( 251 - 80 ) ÷ 80] x 100 = 213.75%
Formula
Percentage change = [(251 - 80) / 80] x 100
Subtract the new number by the original number
251 - 80 = 171
171 ÷ 80 = 2.1375
2.1375 x 100 = 213.75%
Example