210% is the change from 80 to 248
Calculation steps:
[( 248 - 80 ) ÷ 80] x 100 = 210%
Formula
Percentage change = [(248 - 80) / 80] x 100
Subtract the new number by the original number
248 - 80 = 168
168 ÷ 80 = 2.1
2.1 x 100 = 210%
Example