88.89% is the change from 207 to 391
Calculation steps:
[( 391 - 207 ) ÷ 207] x 100 = 88.89%
Formula
Percentage change = [(391 - 207) / 207] x 100
Subtract the new number by the original number
391 - 207 = 184
184 ÷ 207 = 0.8888888888888888
0.8888888888888888 x 100 = 88.89%