86.42% is the change from 243 to 453
Calculation steps:
[( 453 - 243 ) ÷ 243] x 100 = 86.42%
Formula
Percentage change = [(453 - 243) / 243] x 100
Subtract the new number by the original number
453 - 243 = 210
210 ÷ 243 = 0.8641975308641975
0.8641975308641975 x 100 = 86.42%