36.34% is the change from 688 to 938
Calculation steps:
[( 938 - 688 ) ÷ 688] x 100 = 36.34%
Formula
Percentage change = [(938 - 688) / 688] x 100
Subtract the new number by the original number
938 - 688 = 250
250 ÷ 688 = 0.3633720930232558
0.3633720930232558 x 100 = 36.34%