-29.5% is the change from 705 to 497
Calculation steps:
[( 497 - 705 ) ÷ 705] x 100 = -29.5%
Formula
Percentage change = [(497 - 705) / 705] x 100
Subtract the new number by the original number
497 - 705 = -208
-208 ÷ 705 = -0.2950354609929078
-0.2950354609929078 x 100 = -29.5%