220.48% is the change from 83 to 266
Calculation steps:
[( 266 - 83 ) ÷ 83] x 100 = 220.48%
Formula
Percentage change = [(266 - 83) / 83] x 100
Subtract the new number by the original number
266 - 83 = 183
183 ÷ 83 = 2.2048192771084336
2.2048192771084336 x 100 = 220.48%