63.91% is the change from 266 to 436
Calculation steps:
[( 436 - 266 ) ÷ 266] x 100 = 63.91%
Formula
Percentage change = [(436 - 266) / 266] x 100
Subtract the new number by the original number
436 - 266 = 170
170 ÷ 266 = 0.6390977443609023
0.6390977443609023 x 100 = 63.91%