80.42% is the change from 521 to 940
Calculation steps:
[( 940 - 521 ) ÷ 521] x 100 = 80.42%
Formula
Percentage change = [(940 - 521) / 521] x 100
Subtract the new number by the original number
940 - 521 = 419
419 ÷ 521 = 0.8042226487523992
0.8042226487523992 x 100 = 80.42%