167.86% is the change from 280 to 750
Calculation steps:
[( 750 - 280 ) ÷ 280] x 100 = 167.86%
Formula
Percentage change = [(750 - 280) / 280] x 100
Subtract the new number by the original number
750 - 280 = 470
470 ÷ 280 = 1.6785714285714286
1.6785714285714286 x 100 = 167.86%