69.93% is the change from 542 to 921
Calculation steps:
[( 921 - 542 ) ÷ 542] x 100 = 69.93%
Formula
Percentage change = [(921 - 542) / 542] x 100
Subtract the new number by the original number
921 - 542 = 379
379 ÷ 542 = 0.6992619926199262
0.6992619926199262 x 100 = 69.93%