215.79% is the change from 171 to 540
Calculation steps:
[( 540 - 171 ) ÷ 171] x 100 = 215.79%
Formula
Percentage change = [(540 - 171) / 171] x 100
Subtract the new number by the original number
540 - 171 = 369
369 ÷ 171 = 2.1578947368421053
2.1578947368421053 x 100 = 215.79%