98.15% is the change from 270 to 535
Calculation steps:
[( 535 - 270 ) ÷ 270] x 100 = 98.15%
Formula
Percentage change = [(535 - 270) / 270] x 100
Subtract the new number by the original number
535 - 270 = 265
265 ÷ 270 = 0.9814814814814815
0.9814814814814815 x 100 = 98.15%