-55.01% is the change from 938 to 422
Calculation steps:
[( 422 - 938 ) ÷ 938] x 100 = -55.01%
Formula
Percentage change = [(422 - 938) / 938] x 100
Subtract the new number by the original number
422 - 938 = -516
-516 ÷ 938 = -0.5501066098081023
-0.5501066098081023 x 100 = -55.01%