75% is the change from 540 to 945
Calculation steps:
[( 945 - 540 ) ÷ 540] x 100 = 75%
Formula
Percentage change = [(945 - 540) / 540] x 100
Subtract the new number by the original number
945 - 540 = 405
405 ÷ 540 = 0.75
0.75 x 100 = 75%
Example