81.75% is the change from 504 to 916
Calculation steps:
[( 916 - 504 ) ÷ 504] x 100 = 81.75%
Formula
Percentage change = [(916 - 504) / 504] x 100
Subtract the new number by the original number
916 - 504 = 412
412 ÷ 504 = 0.8174603174603174
0.8174603174603174 x 100 = 81.75%