402.9% is the change from 69 to 347
Calculation steps:
[( 347 - 69 ) ÷ 69] x 100 = 402.9%
Formula
Percentage change = [(347 - 69) / 69] x 100
Subtract the new number by the original number
347 - 69 = 278
278 ÷ 69 = 4.028985507246377
4.028985507246377 x 100 = 402.9%