68.52% is the change from 540 to 910
Calculation steps:
[( 910 - 540 ) ÷ 540] x 100 = 68.52%
Formula
Percentage change = [(910 - 540) / 540] x 100
Subtract the new number by the original number
910 - 540 = 370
370 ÷ 540 = 0.6851851851851852
0.6851851851851852 x 100 = 68.52%