73.8% is the change from 397 to 690
Calculation steps:
[( 690 - 397 ) ÷ 397] x 100 = 73.8%
Formula
Percentage change = [(690 - 397) / 397] x 100
Subtract the new number by the original number
690 - 397 = 293
293 ÷ 397 = 0.7380352644836272
0.7380352644836272 x 100 = 73.8%