269.8% is the change from 255 to 943
Calculation steps:
[( 943 - 255 ) ÷ 255] x 100 = 269.8%
Formula
Percentage change = [(943 - 255) / 255] x 100
Subtract the new number by the original number
943 - 255 = 688
688 ÷ 255 = 2.6980392156862747
2.6980392156862747 x 100 = 269.8%