200% is the change from 83 to 249
Calculation steps:
[( 249 - 83 ) ÷ 83] x 100 = 200%
Formula
Percentage change = [(249 - 83) / 83] x 100
Subtract the new number by the original number
249 - 83 = 166
166 ÷ 83 = 2
2 x 100 = 200%
Example