80% is the change from 540 to 972
Calculation steps:
[( 972 - 540 ) ÷ 540] x 100 = 80%
Formula
Percentage change = [(972 - 540) / 540] x 100
Subtract the new number by the original number
972 - 540 = 432
432 ÷ 540 = 0.8
0.8 x 100 = 80%
Example