270.97% is the change from 186 to 690
Calculation steps:
[( 690 - 186 ) ÷ 186] x 100 = 270.97%
Formula
Percentage change = [(690 - 186) / 186] x 100
Subtract the new number by the original number
690 - 186 = 504
504 ÷ 186 = 2.7096774193548385
2.7096774193548385 x 100 = 270.97%