63.53% is the change from 266 to 435
Calculation steps:
[( 435 - 266 ) ÷ 266] x 100 = 63.53%
Formula
Percentage change = [(435 - 266) / 266] x 100
Subtract the new number by the original number
435 - 266 = 169
169 ÷ 266 = 0.6353383458646616
0.6353383458646616 x 100 = 63.53%