207.72% is the change from 311 to 957
Calculation steps:
[( 957 - 311 ) ÷ 311] x 100 = 207.72%
Formula
Percentage change = [(957 - 311) / 311] x 100
Subtract the new number by the original number
957 - 311 = 646
646 ÷ 311 = 2.077170418006431
2.077170418006431 x 100 = 207.72%