55% is the change from 140 to 217
Calculation steps:
[( 217 - 140 ) ÷ 140] x 100 = 55%
Formula
Percentage change = [(217 - 140) / 140] x 100
Subtract the new number by the original number
217 - 140 = 77
77 ÷ 140 = 0.55
0.55 x 100 = 55%
Example