95.85% is the change from 506 to 991
Calculation steps:
[( 991 - 506 ) ÷ 506] x 100 = 95.85%
Formula
Percentage change = [(991 - 506) / 506] x 100
Subtract the new number by the original number
991 - 506 = 485
485 ÷ 506 = 0.958498023715415
0.958498023715415 x 100 = 95.85%