134.42% is the change from 215 to 504
Calculation steps:
[( 504 - 215 ) ÷ 215] x 100 = 134.42%
Formula
Percentage change = [(504 - 215) / 215] x 100
Subtract the new number by the original number
504 - 215 = 289
289 ÷ 215 = 1.344186046511628
1.344186046511628 x 100 = 134.42%