75.72% is the change from 313 to 550
Calculation steps:
[( 550 - 313 ) ÷ 313] x 100 = 75.72%
Formula
Percentage change = [(550 - 313) / 313] x 100
Subtract the new number by the original number
550 - 313 = 237
237 ÷ 313 = 0.7571884984025559
0.7571884984025559 x 100 = 75.72%