-70.7% is the change from 471 to 138
Calculation steps:
[( 138 - 471 ) ÷ 471] x 100 = -70.7%
Formula
Percentage change = [(138 - 471) / 471] x 100
Subtract the new number by the original number
138 - 471 = -333
-333 ÷ 471 = -0.7070063694267515
-0.7070063694267515 x 100 = -70.7%