89.47% is the change from 266 to 504
Calculation steps:
[( 504 - 266 ) ÷ 266] x 100 = 89.47%
Formula
Percentage change = [(504 - 266) / 266] x 100
Subtract the new number by the original number
504 - 266 = 238
238 ÷ 266 = 0.8947368421052632
0.8947368421052632 x 100 = 89.47%