97.9% is the change from 143 to 283
Calculation steps:
[( 283 - 143 ) ÷ 143] x 100 = 97.9%
Formula
Percentage change = [(283 - 143) / 143] x 100
Subtract the new number by the original number
283 - 143 = 140
140 ÷ 143 = 0.9790209790209791
0.9790209790209791 x 100 = 97.9%