73.5% is the change from 551 to 956
Calculation steps:
[( 956 - 551 ) ÷ 551] x 100 = 73.5%
Formula
Percentage change = [(956 - 551) / 551] x 100
Subtract the new number by the original number
956 - 551 = 405
405 ÷ 551 = 0.73502722323049
0.73502722323049 x 100 = 73.5%