103.5% is the change from 143 to 291
Calculation steps:
[( 291 - 143 ) ÷ 143] x 100 = 103.5%
Formula
Percentage change = [(291 - 143) / 143] x 100
Subtract the new number by the original number
291 - 143 = 148
148 ÷ 143 = 1.034965034965035
1.034965034965035 x 100 = 103.5%