61.48% is the change from 270 to 436
Calculation steps:
[( 436 - 270 ) ÷ 270] x 100 = 61.48%
Formula
Percentage change = [(436 - 270) / 270] x 100
Subtract the new number by the original number
436 - 270 = 166
166 ÷ 270 = 0.6148148148148148
0.6148148148148148 x 100 = 61.48%